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

update

  • 1 reply
  • 1 has this problem
  • 12 views
  • Last reply by FredMcD

more options

I set my firefox to never update version, but firefox keep update it. How to fix it. I don't want to update to another version cause my work need only version 39.0

I set my firefox to never update version, but firefox keep update it. How to fix it. I don't want to update to another version cause my work need only version 39.0

All Replies (1)

more options

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

Under Advanced, Select Update. Check the settings.

Also turn off Use a background service to install updates