Fix specific errors
-
 "Firefox is already running but is not responding" error - How to fix
-  Could not initialize the application's security component
-  Enable SSL to fix the Firefox cannot connect securely error message
-  Secure connection failed and Firefox did not connect
-  Server Not Found - Troubleshoot connection problems
-  "This Connection is Untrusted" error message appears - What to do
-  Warning Unresponsive script - What it means and how to fix it
-  Why does my home page say I need to update Firefox when I have the latest version?
-  Re-enable add-ons that were disabled when updating Firefox
-  Error messages when Firefox won't start (XULRunner - Error and others)
-  Fix problems with Kaspersky, Norton, Google or other toolbars
Fix Firefox TypeError messages
Firefox will popup an error in a number of situations. Most often this is caused by a misbehaving extension.
Disable common problem extensions
Before going through complicated troubleshooting steps, try disabling these extensions:
- Click the menu button , click and select .
- If you see Orbit downloader or 1-click YouTube downloader extensions, click the button next to them.
- In the past McAfee SiteAdvisor, ZoneAlarm or PC Tools have also been problems.
- Click .
If the steps above didn't solve the problem, try these articles:
-  Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems
-  Check for new versions of your add-ons
-  How to fix the Update Failed error message when updating Firefox
-  Websites don't load - troubleshoot and fix error messages
-  Disable or remove Add-ons
