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.

Why won't FF4 work on my Mac 0s X 10.4.11 version?

  • 1 reply
  • 20 have this problem
  • 7 views
  • Last reply by cor-el

bjackam
bjackam
more options

I can download the new FF4 but when I try to open it, I get the message that my Mac OS X 10.4.11 will not support the program.

I can download the new FF4 but when I try to open it, I get the message that my Mac OS X 10.4.11 will not support the program.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Firefox 4 requires at least OS X 10.5 and an Intel Mac.

For Mac OS X 10.4.11 or Mac OS X 10.5.8 you can look at:

Firefox 3.6.x can be found here: