This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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
  • 1 view
  • 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