Fix slowness, crashing, error messages, and other problems

This article is no longer maintained, so its content might be out of date.

How to solve most problems with Firefox

Over time Firefox can develop problems like slowness, crashing, unwanted toolbars and more. Troubleshooting and fixing these issues can be difficult and time consuming. The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.

Fix specific issues with Firefox

// These fine people helped write this article:Michael Verdi. You can help too - find out how.
Volunteer for Mozilla Support