Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

how do I undo an update that I didn't want

  • 1 resposta
  • 1 has this problem
  • 6 views
  • Last reply by FredMcD

more options

despite ,my continued refusal of the new version suddenly I have it - so how do I go back to the previous version. My problem is that my security program is not compatible with the new version and I need to have that working

despite ,my continued refusal of the new version suddenly I have it - so how do I go back to the previous version. My problem is that my security program is not compatible with the new version and I need to have that working

All Replies (1)

more options

Type about:preferences#advanced<enter> in the address bar.

Under Advanced, Select Update. Check the settings.


Install an older version of Firefox {web link}