We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

I downloaded the new Firefox 4, and it is not compatible with my current operating system (PowerBook G4 , Mac OS X 10.4.11). I would like the pre-version 4 Firefox. Is it available?

  • 1 reply
  • 47 have this problem
  • 22 views
  • Last reply by cor-el

wrenauld
wrenauld
more options

I updated to Firefox 4, and it is says it is not compatible with my current operating system (PowerBook G4, Mac OS X ver. 10.4.11). How can I download the version available before Firefox 4.

I updated to Firefox 4, and it is says it is not compatible with my current operating system (PowerBook G4, Mac OS X ver. 10.4.11). How can I download the version available before Firefox 4.

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: