diff --git a/cyberdrop_dl/main.py b/cyberdrop_dl/main.py
index 116f3bba1..6a9f79b3c 100644
--- a/cyberdrop_dl/main.py
+++ b/cyberdrop_dl/main.py
@@ -10,6 +10,7 @@
 from time import perf_counter
 from typing import TYPE_CHECKING
 
+import browser_cookie3
 from pydantic import ValidationError
 from rich.console import Console
 from rich.logging import RichHandler
@@ -66,6 +67,10 @@ def startup() -> Manager | None:
         startup_logger.info("Exiting...")
         sys.exit(0)
 
+    except browser_cookie3.BrowserCookieError:
+        startup_logger.exception("")
+        sys.exit(1)
+
     except Exception:
         msg = "An error occurred, please report this to the developer with your logs file:"
         startup_logger.exception(msg)
@@ -199,8 +204,9 @@ async def wrapper(*args, **kwargs):
             exceptions = [e]
             if isinstance(e, ExceptionGroup):
                 exceptions = e.exceptions
-            msg = "An error occurred, please report this to the developer with your logs file:"
-            log_with_color(msg, "bold red", 50, show_in_stats=False)
+            if not isinstance(exceptions[0], browser_cookie3.BrowserCookieError):
+                msg = "An error occurred, please report this to the developer with your logs file:"
+                log_with_color(msg, "bold red", 50, show_in_stats=False)
             for exc in exceptions:
                 log_with_color(f"  {exc}", "bold red", 50, show_in_stats=False, exc_info=exc)
 
diff --git a/cyberdrop_dl/utils/cookie_management.py b/cyberdrop_dl/utils/cookie_management.py
index d7eab6f79..be996ad16 100644
--- a/cyberdrop_dl/utils/cookie_management.py
+++ b/cyberdrop_dl/utils/cookie_management.py
@@ -35,23 +35,19 @@ def wrapper(*args, **kwargs) -> None:
         try:
             return func(*args, **kwargs)
         except PermissionError:
-            msg = """
-            We've encountered a Permissions Error. Please close all browsers and try again
-            If you are still having issues, make sure all browsers processes are closed in Task Manager
-            """
+            msg = """We've encountered a Permissions Error. Please close all browsers and try again
+                     If you are still having issues, make sure all browsers processes are closed in Task Manager"""
             msg = dedent(msg)
 
         except ValueError as e:
             msg = str(e)
 
         except UnsupportedBrowserError as e:
-            msg = f"\nERROR: {e!s}"
+            msg = f"ERROR: {e!s}"
 
         except browser_cookie3.BrowserCookieError as e:
-            msg = """
-            Browser extraction ran into an error, the selected browser(s) may not be available on your system
-            If you are still having issues, make sure all browsers processes are closed in Task Manager.
-            """
+            msg = """Browser extraction ran into an error, the selected browser(s) may not be available on your system
+                     If you are still having issues, make sure all browsers processes are closed in Task Manager."""
 
             msg = dedent(msg) + f"\nERROR: {e!s}"
 
@@ -72,6 +68,7 @@ def get_cookies_from_browsers(
         raise ValueError(msg)
 
     browsers = browsers or manager.config_manager.settings_data.browser_cookies.browsers
+    browsers = list(map(str.lower, browsers))
     domains: list[str] = domains or manager.config_manager.settings_data.browser_cookies.sites
     extractors = [(str(b), getattr(browser_cookie3, b)) for b in browsers if hasattr(browser_cookie3, b)]