Install an older version of Firefox

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  • Revision id: 23392
  • Created:
  • Creator: Michael Verdi
  • Comment: new intro, recommend another browser instead of downgrading
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: Cww
  • Is approved? Yes
  • Is current revision? No
  • Ready for localization: No
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Often when there is a problem with a Firefox update, people look for a way to go back to the previous version. That usually doesn't solve the problem and will make your computer and information vulnerable to attack. This article gives you some alternatives to downgrading.

Installing a previous version doesn't fix most problems

Problems with an update are generally not caused by the new version of Firefox, but rather the update process. Installing a previous version will not help in most cases. Instead, see:

Other problems can be solved by creating a new profile or by following the steps in the Troubleshoot and diagnose Firefox problems article.

I still want to downgrade — where can I get the previous version?

Although Mozilla has a website with old versions of Firefox for testing purposes, it is not recommended that you use anything but the latest version.
Warning: Using old versions of Firefox is not supported and poses a significant security risk.

If you can't use the latest version of Firefox, we recommend that you use the latest version of another browser: