diff --git a/programs/create/create.spec.ts b/programs/create/create.spec.ts
index 53a06452..5b156fae 100644
--- a/programs/create/create.spec.ts
+++ b/programs/create/create.spec.ts
@@ -56,11 +56,7 @@ describe('extension create', () => {
     it.each(ALL_TEMPLATES)(
       `creates the "$name" extension template`,
       async (template) => {
-        const templatePath = path.join(
-          __dirname,
-          'dist',
-          template.name
-        )
+        const templatePath = path.join(__dirname, 'dist', template.name)
 
         await extensionCreate(templatePath, {
           template: template.name,
diff --git a/programs/develop/webpack/lib/constants.ts b/programs/develop/webpack/lib/constants.ts
index 0b3aa5fd..4c439ac5 100644
--- a/programs/develop/webpack/lib/constants.ts
+++ b/programs/develop/webpack/lib/constants.ts
@@ -4,3 +4,11 @@ export const CERTIFICATE_DESTINATION_PATH = path.join(
   process.cwd(),
   'node_modules/extension-develop/dist/certs'
 )
+
+export const CHROMIUM_BASED_BROWSERS = ['chrome', 'edge']
+export const GECKO_BASED_BROWSERS = ['firefox']
+
+export const SUPPORTED_BROWSERS = [
+  ...CHROMIUM_BASED_BROWSERS,
+  ...GECKO_BASED_BROWSERS
+]
diff --git a/programs/develop/webpack/lib/utils.ts b/programs/develop/webpack/lib/utils.ts
index 311eac0b..628884b9 100644
--- a/programs/develop/webpack/lib/utils.ts
+++ b/programs/develop/webpack/lib/utils.ts
@@ -33,15 +33,15 @@ export function isFromFilepathList(
 
 export function getFilename(
   feature: string,
-  filepath: string,
-  exclude: string[]
+  filePath: string,
+  excludeList: FilepathList
 ) {
-  const entryExt = path.extname(filepath)
+  const entryExt = path.extname(filePath)
 
   // Do not attempt to rewrite the asset path if it's in the exclude list.
-  const shouldSkipRewrite = shouldExclude(filepath, {exclude})
+  const skipPathResolve = shouldExclude(filePath, excludeList)
 
-  let fileOutputpath = shouldSkipRewrite ? path.normalize(filepath) : feature
+  let fileOutputpath = skipPathResolve ? path.normalize(filePath) : feature
 
   if (['.js', '.jsx', '.tsx', '.ts'].includes(entryExt)) {
     fileOutputpath = fileOutputpath.replace(entryExt, '.js')
@@ -61,8 +61,8 @@ export function getFilename(
 /**
  * Change the path from win style to unix style
  */
-export function unixify(filepath: string) {
-  return filepath.replace(/\\/g, '/')
+export function unixify(filePath: string) {
+  return filePath.replace(/\\/g, '/')
 }
 
 export function shouldExclude(
@@ -74,17 +74,23 @@ export function shouldExclude(
   }
 
   const unixifiedFilePath = unixify(filePath)
-  return Object.values(ignorePatterns).some((pattern) => {
-    if (typeof pattern !== 'string') {
-      return false
-    }
 
-    const _pattern = unixify(pattern)
+  const isFilePathInExcludedList = Object.values(ignorePatterns).some(
+    (pattern) => {
+      if (typeof pattern !== 'string') {
+        return false
+      }
 
-    return unixifiedFilePath.endsWith(_pattern)
-  })
+      const _pattern = unixify(pattern).replace(/\/$/, '')
+
+      return unixifiedFilePath.includes(_pattern)
+    }
+  )
+
+  return isFilePathInExcludedList
 }
 
+
 export function getManifestContent(
   compilation: Compilation,
   manifestPath: string
diff --git a/programs/develop/webpack/plugin-extension/data/manifest-fields/json-fields/index.ts b/programs/develop/webpack/plugin-extension/data/manifest-fields/json-fields/index.ts
index f062e358..3497da26 100644
--- a/programs/develop/webpack/plugin-extension/data/manifest-fields/json-fields/index.ts
+++ b/programs/develop/webpack/plugin-extension/data/manifest-fields/json-fields/index.ts
@@ -4,7 +4,6 @@ import {type Manifest} from '../../../../webpack-types'
 
 export function jsonFields(
   context: string,
-
   manifest: Manifest
 ): Record<string, string | undefined> {
   return {
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/background.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/background.ts
index d94b06a5..0dd3993d 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/background.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/background.ts
@@ -1,7 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function backgroundPage(manifest: Manifest, exclude: string[]) {
+export function backgroundPage(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.background &&
     manifest.background.page && {
@@ -11,7 +11,7 @@ export function backgroundPage(manifest: Manifest, exclude: string[]) {
           page: getFilename(
             'background/page.html',
             manifest.background.page as string,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/chrome_url_overrides.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/chrome_url_overrides.ts
index b0ac26ad..0e2e0e96 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/chrome_url_overrides.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/chrome_url_overrides.ts
@@ -1,7 +1,10 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function chromeUrlOverrides(manifest: Manifest, exclude: string[]) {
+export function chromeUrlOverrides(
+  manifest: Manifest,
+  excludeList: FilepathList
+) {
   return (
     manifest.chrome_url_overrides && {
       chrome_url_overrides: {
@@ -9,21 +12,21 @@ export function chromeUrlOverrides(manifest: Manifest, exclude: string[]) {
           bookmarks: getFilename(
             'chrome_url_overrides/bookmarks.html',
             manifest.chrome_url_overrides.bookmarks,
-            exclude
+            excludeList
           )
         }),
         ...(manifest.chrome_url_overrides.history && {
           history: getFilename(
             'chrome_url_overrides/history.html',
             manifest.chrome_url_overrides.history,
-            exclude
+            excludeList
           )
         }),
         ...(manifest.chrome_url_overrides.newtab && {
           newtab: getFilename(
             'chrome_url_overrides/newtab.html',
             manifest.chrome_url_overrides.newtab,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/content_scripts.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/content_scripts.ts
index d30e081f..fc4aabe0 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/content_scripts.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/content_scripts.ts
@@ -1,4 +1,4 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 interface ContentObj {
@@ -6,7 +6,7 @@ interface ContentObj {
   css?: string[] | undefined
 }
 
-export function contentScripts(manifest: Manifest, exclude: string[]) {
+export function contentScripts(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.content_scripts && {
       content_scripts: manifest.content_scripts.map(
@@ -27,7 +27,7 @@ export function contentScripts(manifest: Manifest, exclude: string[]) {
                 return getFilename(
                   `content_scripts/content-${index}.js`,
                   js,
-                  exclude
+                  excludeList
                 )
               })
             ],
@@ -36,7 +36,7 @@ export function contentScripts(manifest: Manifest, exclude: string[]) {
                 return getFilename(
                   `content_scripts/content-${index}.css`,
                   css,
-                  exclude
+                  excludeList
                 )
               })
             ]
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/devtools_page.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/devtools_page.ts
index 436d48a8..d3115443 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/devtools_page.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/devtools_page.ts
@@ -1,16 +1,16 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 // A DevTools extension adds functionality to the Chrome DevTools.
 // It can add new UI panels and sidebars, interact with the
 // inspected page, get information about network requests, and more.
-export function devtoolsPage(manifest: Manifest, exclude: string[]) {
+export function devtoolsPage(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.devtools_page && {
       devtools_page: getFilename(
         'devtools_page.html',
         manifest.devtools_page,
-        exclude
+        excludeList
       )
     }
   )
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/icons.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/icons.ts
index 3bb3bd56..071c24f4 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/icons.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/icons.ts
@@ -1,17 +1,17 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
 
-export function icons(manifest: Manifest, exclude: string[]) {
+export function icons(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.icons && {
       icons: Object.fromEntries(
         Object.entries(manifest.icons).map(([size, icon]) => {
           return [
             size,
-            getFilename(`icons/${getBasename(icon)}`, icon, exclude)
+            getFilename(`icons/${getBasename(icon)}`, icon, excludeList)
           ]
         })
       )
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/index.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/index.ts
index 8cce1e32..df6b7924 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/index.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/index.ts
@@ -13,24 +13,24 @@ import {storage} from './storage'
 import {theme} from './theme'
 import {userScripts} from './user_scripts'
 import {webAccessibleResources} from './web_accessible_resources'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 
-export function manifestCommon(manifest: Manifest, exclude: string[]) {
+export function manifestCommon(manifest: Manifest, excludeList: FilepathList) {
   return {
-    ...backgroundPage(manifest, exclude),
-    ...chromeUrlOverrides(manifest, exclude),
-    ...contentScripts(manifest, exclude),
-    ...devtoolsPage(manifest, exclude),
-    ...icons(manifest, exclude),
-    ...optionsPage(manifest, exclude),
-    ...optionsUi(manifest, exclude),
-    ...pageAction(manifest, exclude),
-    ...sandbox(manifest, exclude),
-    ...sidePanel(manifest, exclude),
-    ...sidebarAction(manifest, exclude),
-    ...storage(manifest, exclude),
-    ...theme(manifest, exclude),
-    ...userScripts(manifest, exclude),
+    ...backgroundPage(manifest, excludeList),
+    ...chromeUrlOverrides(manifest, excludeList),
+    ...contentScripts(manifest, excludeList),
+    ...devtoolsPage(manifest, excludeList),
+    ...icons(manifest, excludeList),
+    ...optionsPage(manifest, excludeList),
+    ...optionsUi(manifest, excludeList),
+    ...pageAction(manifest, excludeList),
+    ...sandbox(manifest, excludeList),
+    ...sidePanel(manifest, excludeList),
+    ...sidebarAction(manifest, excludeList),
+    ...storage(manifest, excludeList),
+    ...theme(manifest, excludeList),
+    ...userScripts(manifest, excludeList),
     ...webAccessibleResources(manifest)
   }
 }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_page.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_page.ts
index 0fa37a6e..793e0eec 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_page.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_page.ts
@@ -1,13 +1,13 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function optionsPage(manifest: Manifest, exclude: string[]) {
+export function optionsPage(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.options_page && {
       options_page: getFilename(
         'options_ui/page.html',
         manifest.options_page,
-        exclude
+        excludeList
       )
     }
   )
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_ui.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_ui.ts
index 370c7ae8..82a60c0d 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_ui.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/options_ui.ts
@@ -1,7 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function optionsUi(manifest: Manifest, exclude: string[]) {
+export function optionsUi(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.options_ui && {
       options_ui: {
@@ -10,7 +10,7 @@ export function optionsUi(manifest: Manifest, exclude: string[]) {
           page: getFilename(
             'options_ui/page.html',
             manifest.options_ui.page,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/page_action.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/page_action.ts
index cef44401..1edcba42 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/page_action.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/page_action.ts
@@ -1,9 +1,9 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
-export function pageAction(manifest: Manifest, exclude: string[]) {
+export function pageAction(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.page_action && {
       page_action: {
@@ -12,7 +12,7 @@ export function pageAction(manifest: Manifest, exclude: string[]) {
           default_popup: getFilename(
             'page_action/default_popup.html',
             manifest.page_action.default_popup as string,
-            exclude
+            excludeList
           )
         }),
         ...(manifest.page_action.default_icon && {
@@ -23,7 +23,7 @@ export function pageAction(manifest: Manifest, exclude: string[]) {
                     manifest.page_action.default_icon as string
                   )}`,
                   manifest.page_action.default_icon as string,
-                  exclude
+                  excludeList
                 )
               : Object.fromEntries(
                   Object.entries(
@@ -31,7 +31,11 @@ export function pageAction(manifest: Manifest, exclude: string[]) {
                   ).map(([size, icon]) => {
                     return [
                       size,
-                      getFilename(`icons/${getBasename(icon)}`, icon, exclude)
+                      getFilename(
+                        `icons/${getBasename(icon)}`,
+                        icon,
+                        excludeList
+                      )
                     ]
                   })
                 )
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sandbox.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sandbox.ts
index 8f53eb1e..64c6c35a 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sandbox.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sandbox.ts
@@ -1,17 +1,17 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 // Defines an collection of app or extension pages that are to be served
 // in a sandboxed unique origin, and optionally a Content Security Policy
 // to use with them.
-export function sandbox(manifest: Manifest, exclude: string[]) {
+export function sandbox(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.sandbox && {
       sandbox: {
         ...manifest.sandbox,
         ...(manifest.sandbox.pages && {
           pages: manifest.sandbox.pages.map((page: string, index: number) => {
-            return getFilename(`sandbox/page-${index}.html`, page, exclude)
+            return getFilename(`sandbox/page-${index}.html`, page, excludeList)
           })
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sidebar_action.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sidebar_action.ts
index 45a1fcbc..b81e290d 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sidebar_action.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/sidebar_action.ts
@@ -1,9 +1,9 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
-export function sidebarAction(manifest: Manifest, exclude: string[]) {
+export function sidebarAction(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.sidebar_action && {
       sidebar_action: {
@@ -12,7 +12,7 @@ export function sidebarAction(manifest: Manifest, exclude: string[]) {
           default_panel: getFilename(
             `sidebar_action/default_panel.html`,
             manifest.sidebar_action.default_panel as string,
-            exclude
+            excludeList
           )
         }),
 
@@ -22,7 +22,7 @@ export function sidebarAction(manifest: Manifest, exclude: string[]) {
               manifest.sidebar_action.default_icon as string
             )}`,
             manifest.sidebar_action.default_icon as string,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/storage.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/storage.ts
index 341e625b..f9f58c03 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/storage.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/storage.ts
@@ -1,7 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function storage(manifest: Manifest, exclude: string[]) {
+export function storage(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.storage && {
       storage: {
@@ -9,7 +9,7 @@ export function storage(manifest: Manifest, exclude: string[]) {
           managed_schema: getFilename(
             'storage/managed_schema.json',
             manifest.storage.managed_schema,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/theme.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/theme.ts
index a60ed695..788cae67 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/theme.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/theme.ts
@@ -1,10 +1,10 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
 
-export function theme(manifest: Manifest, exclude: string[]) {
+export function theme(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.theme && {
       theme: {
@@ -17,7 +17,7 @@ export function theme(manifest: Manifest, exclude: string[]) {
                 manifest.theme.images.theme_frame as string
               )}`,
               manifest.theme.images.theme_frame as string,
-              exclude
+              excludeList
             )
           }
         })
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/user_scripts.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/user_scripts.ts
index 7ad42492..2dbdaa2e 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/user_scripts.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/common/user_scripts.ts
@@ -1,7 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function userScripts(manifest: Manifest, exclude: string[]) {
+export function userScripts(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.user_scripts && {
       user_scripts: {
@@ -11,7 +11,7 @@ export function userScripts(manifest: Manifest, exclude: string[]) {
           api_script: getFilename(
             'user_scripts/api_script.js',
             manifest.user_scripts.api_script as string,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/index.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/index.ts
index bc3741d3..3b457b84 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/index.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/index.ts
@@ -1,4 +1,3 @@
-import path from 'path'
 import {manifestV2} from './mv2'
 import {manifestV3} from './mv3'
 import {manifestCommon} from './common'
@@ -12,37 +11,12 @@ export function getManifestOverrides(
   // Load the manifest content from the manifestPath if not provided.
   const manifestContent: Manifest = manifest || require(manifestPath)
 
-  // Function to handle different types of excludePath (string, array of strings, or undefined).
-  const processExcludePath = (
-    excludePath: string | string[] | undefined
-  ): string[] => {
-    if (Array.isArray(excludePath)) {
-      return excludePath.map((ep) => processSingleExcludePath(ep))
-    } else if (typeof excludePath === 'string') {
-      return [processSingleExcludePath(excludePath)]
-    } else {
-      return []
-    }
-  }
-
-  const processSingleExcludePath = (excludePath: string): string => {
-    const context = path.dirname(manifestPath)
-    const excludeRelative = excludePath.replace(context, '')
-    return excludeRelative.startsWith('/')
-      ? excludeRelative.slice(1)
-      : excludeRelative
-  }
-
-  const excludeRelative = Object.entries(excludeList).flatMap(
-    ([, excludePath]) => processExcludePath(excludePath)
-  )
-
   return JSON.stringify(
     {
       ...manifestContent,
-      ...manifestCommon(manifestContent, excludeRelative),
-      ...manifestV2(manifestContent, excludeRelative),
-      ...manifestV3(manifestContent, excludeRelative)
+      ...manifestCommon(manifestContent, excludeList),
+      ...manifestV2(manifestContent, excludeList),
+      ...manifestV3(manifestContent, excludeList)
     },
     null,
     2
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/background.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/background.ts
index dd8a0eda..c8e4ccf5 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/background.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/background.ts
@@ -1,6 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
+import {getFilename} from '../../../../lib/utils'
 
-export function background(manifest: Manifest, exclude: string[]) {
+export function background(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.background &&
     manifest.background.scripts && {
@@ -8,9 +9,8 @@ export function background(manifest: Manifest, exclude: string[]) {
         ...manifest.background,
         ...(manifest.background.scripts && {
           scripts: [
-            'background/scripts.js',
-            ...manifest.background.scripts.filter((script: string) =>
-              exclude.includes(script)
+            ...manifest.background.scripts.map((script) =>
+              getFilename('background/scripts.js', script, excludeList)
             )
           ]
         })
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/browser_action.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/browser_action.ts
index ad3ded0f..76b49065 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/browser_action.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/browser_action.ts
@@ -1,9 +1,9 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
-export function browserAction(manifest: Manifest, exclude: string[]) {
+export function browserAction(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.browser_action && {
       browser_action: {
@@ -12,7 +12,7 @@ export function browserAction(manifest: Manifest, exclude: string[]) {
           default_popup: getFilename(
             'browser_action/default_popup.html',
             manifest.browser_action.default_popup as string,
-            exclude
+            excludeList
           )
         }),
         ...(manifest.browser_action.default_icon && {
@@ -23,7 +23,7 @@ export function browserAction(manifest: Manifest, exclude: string[]) {
                     manifest.browser_action.default_icon as string
                   )}`,
                   manifest.browser_action.default_icon as string,
-                  exclude
+                  excludeList
                 )
               : Object.fromEntries(
                   Object.entries(
@@ -31,7 +31,11 @@ export function browserAction(manifest: Manifest, exclude: string[]) {
                   ).map(([size, icon]) => {
                     return [
                       size,
-                      getFilename(`icons/${getBasename(icon)}`, icon, exclude)
+                      getFilename(
+                        `icons/${getBasename(icon)}`,
+                        icon,
+                        excludeList
+                      )
                     ]
                   })
                 )
@@ -45,14 +49,14 @@ export function browserAction(manifest: Manifest, exclude: string[]) {
                   light: getFilename(
                     `browser_action/${getBasename(themeIcon.light)}`,
                     themeIcon.light,
-                    exclude
+                    excludeList
                   )
                 }),
                 ...(themeIcon.dark && {
                   dark: getFilename(
                     `browser_action/${getBasename(themeIcon.dark)}`,
                     themeIcon.dark,
-                    exclude
+                    excludeList
                   )
                 })
               }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/declarative_net_request.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/declarative_net_request.ts
index ac2a5655..75a234b2 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/declarative_net_request.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/declarative_net_request.ts
@@ -1,7 +1,10 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function declarativeNetRequest(manifest: Manifest, exclude: string[]) {
+export function declarativeNetRequest(
+  manifest: Manifest,
+  excludeList: FilepathList
+) {
   return (
     manifest.declarative_net_request && {
       declarative_net_request: {
@@ -15,7 +18,7 @@ export function declarativeNetRequest(manifest: Manifest, exclude: string[]) {
                 getFilename(
                   `declarative_net_request/${resourceObj.id}.json`,
                   resourceObj.path,
-                  exclude
+                  excludeList
                 )
             }
           }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/index.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/index.ts
index b790b9ad..bac201c8 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/index.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv2/index.ts
@@ -1,12 +1,12 @@
 import {background} from './background'
 import {browserAction} from './browser_action'
 import {declarativeNetRequest} from './declarative_net_request'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 
-export function manifestV2(manifest: Manifest, exclude: string[]) {
+export function manifestV2(manifest: Manifest, excludeList: FilepathList) {
   return {
-    ...background(manifest, exclude),
-    ...browserAction(manifest, exclude),
-    ...declarativeNetRequest(manifest, exclude)
+    ...background(manifest, excludeList),
+    ...browserAction(manifest, excludeList),
+    ...declarativeNetRequest(manifest, excludeList)
   }
 }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/action.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/action.ts
index 97419d8b..d9ca27c3 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/action.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/action.ts
@@ -1,9 +1,9 @@
 import path from 'path'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
 const getBasename = (filepath: string) => path.basename(filepath)
-export function action(manifest: Manifest, exclude: string[]) {
+export function action(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.action && {
       action: {
@@ -12,7 +12,7 @@ export function action(manifest: Manifest, exclude: string[]) {
           default_popup: getFilename(
             `action/default_popup.html`,
             manifest.action.default_popup as string,
-            exclude
+            excludeList
           )
         }),
 
@@ -24,7 +24,7 @@ export function action(manifest: Manifest, exclude: string[]) {
                     manifest.action.default_icon as string
                   )}`,
                   manifest.action.default_icon as string,
-                  exclude
+                  excludeList
                 )
               : Object.fromEntries(
                   Object.entries(manifest.action.default_icon as string).map(
@@ -34,7 +34,7 @@ export function action(manifest: Manifest, exclude: string[]) {
                         getFilename(
                           `action/${getBasename(icon)}`,
                           icon,
-                          exclude
+                          excludeList
                         )
                       ]
                     }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/background.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/background.ts
index 08c9fbac..451d298c 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/background.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/background.ts
@@ -1,7 +1,10 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function backgroundServiceWorker(manifest: Manifest, exclude: string[]) {
+export function backgroundServiceWorker(
+  manifest: Manifest,
+  excludeList: FilepathList
+) {
   return (
     manifest.background &&
     manifest.background.service_worker && {
@@ -11,7 +14,7 @@ export function backgroundServiceWorker(manifest: Manifest, exclude: string[]) {
           service_worker: getFilename(
             'background/service_worker.js',
             manifest.background.service_worker as string,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/index.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/index.ts
index d576b7a4..aef6e416 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/index.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/index.ts
@@ -1,12 +1,12 @@
 import {action} from './action'
 import {backgroundServiceWorker} from './background'
 import {sidePanel} from './side_panel'
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 
-export function manifestV3(manifest: Manifest, exclude: string[]) {
+export function manifestV3(manifest: Manifest, excludeList: FilepathList) {
   return {
-    ...action(manifest, exclude),
-    ...backgroundServiceWorker(manifest, exclude),
-    ...sidePanel(manifest, exclude)
+    ...action(manifest, excludeList),
+    ...backgroundServiceWorker(manifest, excludeList),
+    ...sidePanel(manifest, excludeList)
   }
 }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/side_panel.ts b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/side_panel.ts
index 384bea63..6815e84e 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/side_panel.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/manifest-overrides/mv3/side_panel.ts
@@ -1,7 +1,7 @@
-import {type Manifest} from '../../../../webpack-types'
+import {type Manifest, type FilepathList} from '../../../../webpack-types'
 import {getFilename} from '../../../../lib/utils'
 
-export function sidePanel(manifest: Manifest, exclude: string[]) {
+export function sidePanel(manifest: Manifest, excludeList: FilepathList) {
   return (
     manifest.side_panel && {
       side_panel: {
@@ -9,7 +9,7 @@ export function sidePanel(manifest: Manifest, exclude: string[]) {
           default_path: getFilename(
             'side_panel/default_path.html',
             manifest.side_panel.default_path as string,
-            exclude
+            excludeList
           )
         })
       }
diff --git a/programs/develop/webpack/plugin-extension/feature-manifest/steps/update-manifest.ts b/programs/develop/webpack/plugin-extension/feature-manifest/steps/update-manifest.ts
index b4584acb..bf357a99 100644
--- a/programs/develop/webpack/plugin-extension/feature-manifest/steps/update-manifest.ts
+++ b/programs/develop/webpack/plugin-extension/feature-manifest/steps/update-manifest.ts
@@ -23,7 +23,7 @@ export class UpdateManifest {
       (contentObj: {js: string[]; css: string[]}, index: number) => {
         if (contentObj.css.length && !contentObj.js.length) {
           contentObj.js = [
-            getFilename(`content_scripts-${index}`, 'dev.js', [])
+            getFilename(`content_scripts-${index}`, 'dev.js', {})
           ]
         }
 
diff --git a/programs/develop/webpack/plugin-extension/feature-scripts/__spec__/scripts-lib/utils.spec.ts b/programs/develop/webpack/plugin-extension/feature-scripts/__spec__/scripts-lib/utils.spec.ts
index daf5e65c..7392e495 100644
--- a/programs/develop/webpack/plugin-extension/feature-scripts/__spec__/scripts-lib/utils.spec.ts
+++ b/programs/develop/webpack/plugin-extension/feature-scripts/__spec__/scripts-lib/utils.spec.ts
@@ -52,7 +52,7 @@ describe('File Utilities', () => {
 
     it('returns an empty array if no valid script entries exist', () => {
       const scriptEntries = getScriptEntries(
-        [path.join(testDir, 'invalid.js')],
+        [path.join(testDir, 'script2.js')],
         excludeList
       )
       expect(scriptEntries).toEqual([])
@@ -85,7 +85,7 @@ describe('File Utilities', () => {
 
     it('returns an empty array if no valid CSS entries exist', () => {
       const cssEntries = getCssEntries(
-        [path.join(testDir, 'invalid.css')],
+        [path.join(testDir, 'theme.scss')],
         excludeList
       )
       expect(cssEntries).toEqual([])
diff --git a/programs/develop/webpack/plugin-extension/feature-scripts/scripts-lib/utils.ts b/programs/develop/webpack/plugin-extension/feature-scripts/scripts-lib/utils.ts
index 140eee39..cf110581 100644
--- a/programs/develop/webpack/plugin-extension/feature-scripts/scripts-lib/utils.ts
+++ b/programs/develop/webpack/plugin-extension/feature-scripts/scripts-lib/utils.ts
@@ -20,7 +20,13 @@ export function getScriptEntries(
 
     const assetExtension = path.extname(scriptAsset)
 
-    return validFile && scriptAsset.includes(assetExtension)
+    return validFile && (
+      assetExtension === '.js' ||
+      assetExtension === '.mjs' ||
+      assetExtension === '.jsx' ||
+      assetExtension === '.ts' ||
+      assetExtension === '.tsx'
+    )
   })
 
   return fileAssets
@@ -41,7 +47,7 @@ export function getCssEntries(
       fs.existsSync(scriptAsset) &&
       !utils.shouldExclude(scriptAsset, excludeList)
 
-    return (
+      return (
       validFile &&
       (scriptAsset.endsWith('.css') ||
         scriptAsset.endsWith('.scss') ||
diff --git a/yarn.lock b/yarn.lock
index 3850d36a..0b6e08c1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2467,9 +2467,9 @@
     "@types/estree" "*"
 
 "@types/eslint@*":
-  version "9.6.0"
-  resolved "https://registry.yarnpkg.com/@types/eslint/-/eslint-9.6.0.tgz#51d4fe4d0316da9e9f2c80884f2c20ed5fb022ff"
-  integrity sha512-gi6WQJ7cHRgZxtkQEoyHMppPjq9Kxo5Tjn2prSKDSmZrCz8TZ3jSRCeTJm+WoM+oB0WG37bRqLzaaU3q7JypGg==
+  version "9.6.1"
+  resolved "https://registry.yarnpkg.com/@types/eslint/-/eslint-9.6.1.tgz#d5795ad732ce81715f27f75da913004a56751584"
+  integrity sha512-FXx2pKgId/WyYo2jXw63kk7/+TY7u7AziEJxJAnSFzHlqTAS3Ync6SvgYAN/k4/PQpnnVuzoMuVnByKK2qp0ag==
   dependencies:
     "@types/estree" "*"
     "@types/json-schema" "*"
@@ -3208,9 +3208,9 @@ astral-regex@^2.0.0:
   integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
 
 astring@^1.8.6:
-  version "1.8.6"
-  resolved "https://registry.yarnpkg.com/astring/-/astring-1.8.6.tgz#2c9c157cf1739d67561c56ba896e6948f6b93731"
-  integrity sha512-ISvCdHdlTDlH5IpxQJIex7BWBywFWgjJSVdwst+/iQCoEYnyOaQ95+X1JGshuBjGp6nxKUy1jMgE3zPqN7fQdg==
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/astring/-/astring-1.9.0.tgz#cc73e6062a7eb03e7d19c22d8b0b3451fd9bfeef"
+  integrity sha512-LElXdjswlqjWrPpJFg1Fx4wpkOCxj1TDHlSV4PlaRxHGWko024xICaa97ZkMfs6DRKlCguiAI+rbXv5GWwXIkg==
 
 async@^3.2.3:
   version "3.2.6"
@@ -3540,9 +3540,9 @@ camelcase@^6.2.0:
   integrity sha512-Gmy6FhYlCY7uOElZUSbxo2UCDH8owEk996gkbrpsgGtrJLM3J7jGxl9Ic7Qwwj4ivOE5AWZWRMecDdF7hqGjFA==
 
 caniuse-lite@^1.0.30001646:
-  version "1.0.30001651"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001651.tgz#52de59529e8b02b1aedcaaf5c05d9e23c0c28138"
-  integrity sha512-9Cf+Xv1jJNe1xPZLGuUXLNkE1BoDkqRqYyFJ9TDYSqhduqA4hu4oR9HluGoWYQC/aj8WHjsGVV+bwkh0+tegRg==
+  version "1.0.30001653"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001653.tgz#b8af452f8f33b1c77f122780a4aecebea0caca56"
+  integrity sha512-XGWQVB8wFQ2+9NZwZ10GxTYC5hk0Fa+q8cSkr0tgvMhYhMHP/QC+WTgrePMDBWiWc/pV+1ik82Al20XOK25Gcw==
 
 case-sensitive-paths-webpack-plugin@^2.4.0:
   version "2.4.0"
@@ -3610,9 +3610,9 @@ ci-info@^3.2.0, ci-info@^3.7.0:
   integrity sha512-NIxF55hv4nSqQswkAeiOi1r83xy8JldOFDTWiug55KBu9Jnblncd2U6ViHmYgHf01TPZS77NJBhBMKdWj9HQMQ==
 
 cjs-module-lexer@^1.0.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-1.3.1.tgz#c485341ae8fd999ca4ee5af2d7a1c9ae01e0099c"
-  integrity sha512-a3KdPAANPbNE4ZUv9h6LckSl9zLsYOP4MBmhIPkRaeyybt+r4UghLvq+xw/YwUcC1gqylCkL4rdVs3Lwupjm4Q==
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/cjs-module-lexer/-/cjs-module-lexer-1.4.0.tgz#677de7ed7efff67cc40c9bf1897fea79d41b5215"
+  integrity sha512-N1NGmowPlGBLsOZLPvm48StN04V4YvQRL0i6b7ctrVY3epjP/ct7hFLOItz6pDIvRjwpfPxi52a2UWV2ziir8g==
 
 cliui@^8.0.1:
   version "8.0.1"
@@ -7849,9 +7849,9 @@ stylelint-config-standard@^36.0.0:
     stylelint-config-recommended "^14.0.1"
 
 stylelint-scss@^6.4.0:
-  version "6.5.0"
-  resolved "https://registry.yarnpkg.com/stylelint-scss/-/stylelint-scss-6.5.0.tgz#c5495f254195c41b97f9bc995e4d3725b375447a"
-  integrity sha512-yOnYlr71wrTPT3rYyUurgTj6Rw7JUtzsZQsiPEjvs+k/yqoYHdweqpw6XN/ARpxjAuvJpddoMUvV8aAIpvUwTg==
+  version "6.5.1"
+  resolved "https://registry.yarnpkg.com/stylelint-scss/-/stylelint-scss-6.5.1.tgz#bcb6a4ada71a0adbf181e155548e5f25ee4aeece"
+  integrity sha512-ZLqdqihm6uDYkrsOeD6YWb+stZI8Wn92kUNDhE4M+g9g1aCnRv0JlOrttFiAJJwaNzpdQgX3YJb5vDQXVuO9Ww==
   dependencies:
     css-tree "2.3.1"
     is-plain-object "5.0.0"