Firefox Add-ons Causing Browser Crashes

When I recently updated my Firefox browser, it began to crash whenever I opened more than one tab. I tried all the usual suspects: reinstalled Firefox, ran a malware scan. It turned out the problem was not with Firefox itself but the compatability with certain add-ons.

If you are having problems with Firefox, go to the Tools menu, and choose Add-ons. The Add-ons Manager will appear (a screenshot is below). Disable everything (the Disable buttons are circled in the screenshot below). If Firefox starts working properly again, you can Enable them one at a time, until you find the one that was making Firefox crash. Problem solved!