Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to uninstall latest version of Firefox, and reinstall the previous one?

  • 2 replies
  • 1 has this problem
  • 72 views
  • Last reply by FredMcD
  • Archived

justgreenleaf
justgreenleaf

Firefox offered and update version of the product. I've used it for years, so of course I accepted. Now I have a number of small aggravating glitches. I want to uninstall the new version, and reinstall the older version. In searching thru google, I have not found a solution that works.

Firefox offered and update version of the product. I've used it for years, so of course I accepted. Now I have a number of small aggravating glitches. I want to uninstall the new version, and reinstall the older version. In searching thru google, I have not found a solution that works.

All Replies (2)

michi
michi

Hi,

here's the documentation link: https://support.mozilla.org/en-US/kb/install-older-version-of-firefox

Regards

FredMcD
FredMcD

Note: Some versions of Quantum change how the data files are set up, so they are not backward compatible.

Copy your user profile first.