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

I have installed Firefox4 to find it is not compatible with my version of OSX how do I get version 3.6 back or do I just give up and use Safari?

  • 1 reply
  • 4 have this problem
  • 5 views
  • Last reply by glais

more options

I downloaded Version 4 and installed it. At no point did it say that it was not compatible with the version of OS X that I am running (10.4.11) now that it is installed it will not open but it has already up graded from 3.6 so I have lost the lot. How can I download a version of 3.6 so that I can use it again or should I just pack up and use Safari as all I can get from your site is version 4. HELP!!!

I downloaded Version 4 and installed it. At no point did it say that it was not compatible with the version of OS X that I am running (10.4.11) now that it is installed it will not open but it has already up graded from 3.6 so I have lost the lot. How can I download a version of 3.6 so that I can use it again or should I just pack up and use Safari as all I can get from your site is version 4. HELP!!!

All Replies (1)

more options

Go to this link and find your language:

http://www.mozilla.com/en-US/firefox/all-older.html