diff --git a/test/common/testlib.py b/test/common/testlib.py
index 8a6c5bc7f164..297b352b8142 100644
--- a/test/common/testlib.py
+++ b/test/common/testlib.py
@@ -1702,12 +1702,41 @@ def login_and_go(self, path: Optional[str] = None, user: Optional[str] = None, h
 
     # List of allowed console.error() messages during tests; these match substrings
     default_allowed_console_errors = [
+        # HACK: Fix these ASAP, these are major bugs
+        "Warning: validateDOMNesting.*cannot appear as a",
+        "Warning: Encountered two children with the same key",
+        "Warning: Failed.*type.*prop Invalid prop",
+        "Warning: Failed.*type:.*is marked as required in.*but its value is `null`",
+        "Warning: Failed.*type:.*is marked as required in.*but its value is `undefined`",
+        "Warning: React does not recognize the.*prop on a DOM element",
+        "Warning: .*prop on .* should not be null",
+        # HACK: this should be fixed, it's completely expected on OSes without tracer
+        "Tracer failed:.*",
         # HACK: These should be fixed, but debugging these is not trivial, and the impact is very low
         "Warning: .* setState.*on an unmounted component",
-        "Warning: Can't perform a React state update on an unmounted component."
+        "Warning: Can't perform a React state update on an unmounted component",
+        "Warning: Cannot update a component.*while rendering a different component",
+        "Warning: A component is changing an uncontrolled input to be controlled",
+        "Warning: A component is changing an controlled input to be uncontrolled",
+        "Warning: Can't call.*on a component that is not yet mounted. This is a no-op",
+        "Warning: Cannot update during an existing state transition",
+        r"Warning: You are calling ReactDOMClient.createRoot\(\) on a container that has already been passed to createRoot",
+
+        # FIXME: PatternFly complains about these, but https://www.a11y-collective.com/blog/the-first-rule-for-using-aria/
+        # and https://www.accessibility-developer-guide.com/knowledge/aria/bad-practices/
+        "aria-label",
+        # messages from our own pages
+        "CPU temperature metric closed.*",
+        "failed to call cockpit.Machines.Update().*",
+        "Failed to enable pmproxy in firewalld.*",
+        "Getting properties for problem.*",
+        "Channel for reportd D-Bus client closed.*",
+        "checkRealm failed.*",
     ]
 
-    default_allowed_console_errors += os.environ.get("TEST_ALLOW_BROWSER_ERRORS", "").split(",")
+    env_allow = os.environ.get("TEST_ALLOW_BROWSER_ERRORS")
+    if env_allow:
+        default_allowed_console_errors += env_allow.split(",")
 
     def allow_journal_messages(self, *patterns: str):
         """Don't fail if the journal contains a entry completely matching the given regexp"""
diff --git a/test/verify/check-networkmanager-wireguard b/test/verify/check-networkmanager-wireguard
index b3b3f82f59d3..5a4c52678dbf 100755
--- a/test/verify/check-networkmanager-wireguard
+++ b/test/verify/check-networkmanager-wireguard
@@ -59,6 +59,7 @@ class TestWireGuard(packagelib.PackageCase, netlib.NetworkCase):
         # Validate each field, enter the right value, and then proceed to the next field
         #
         # check private-key
+        self.allow_browser_errors("wg: Key is not the correct length or format")
         b.click("#network-wireguard-settings-paste-key")
         b.set_input_text("#network-wireguard-settings-private-key-input", "incorrect key")
         b.set_input_text("#network-wireguard-settings-addresses-input", m1_ip4)
diff --git a/test/verify/check-sosreport b/test/verify/check-sosreport
index c401a38952d1..1b1edb068135 100755
--- a/test/verify/check-sosreport
+++ b/test/verify/check-sosreport
@@ -121,6 +121,8 @@ exit 1""", perm="755")
         b.wait_not_present("#sos-dialog")
 
         self.allow_journal_messages('.*comm="sosreport".*')
+        # HACK: Fix this in the code, this is useless
+        self.allow_browser_errors('error: {"problem":null,"exit_status":1,"exit_signal":null')
 
     def testWithUrlRoot(self):
         self.testBasic(urlroot="/webcon")
@@ -173,6 +175,9 @@ only-plugins=release,date,host,cgroups,networking
         m.execute("while pgrep -a -x sos; do sleep 1; done", timeout=10)
         self.assertEqual(m.execute("ls /var/tmp/sosreport* 2>/dev/null || true"), "")
 
+        # HACK: Fix this in the code, this is useless
+        self.allow_browser_errors('error: {"problem":"cancelled","exit_status":null')
+
     def testAppStream(self):
         b = self.browser
         m = self.machine