Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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.

undoing an upgrade to Firefox 4

  • 1 reply
  • 5 have this problem
  • 11 views
  • Last reply by TonyE

peteri
peteri
more options

I downloaded an upgrade to Firefox 4 but it isn't supported by MacOS X 10.4. The upgrade replaced my old version. How do I get back to version 3 of Firefox? It won't open at all now.

I downloaded an upgrade to Firefox 4 but it isn't supported by MacOS X 10.4. The upgrade replaced my old version. How do I get back to version 3 of Firefox? It won't open at all now.

All Replies (1)

TonyE
TonyE
  • Moderator
more options

Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox

If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html