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.

what is the oldest apple OS Firefox 5.0.1 will run on?

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by cor-el

leapfrogger57
leapfrogger57
more options

This question pertains to my 82-yr. old father, who has an Apple G5 iMac about 6 yrs. old, about 500 mhz processor, and cannot $-afford to upgrade anything. I need to be able to convince him it's safe to download and install either Firefox 4.x.x or perhaps 5.0.1-- that it won't create a significant problem of some kind. He has OSX 10.4.11 thanks.

This question pertains to my 82-yr. old father, who has an Apple G5 iMac about 6 yrs. old, about 500 mhz processor, and cannot $-afford to upgrade anything. I need to be able to convince him it's safe to download and install either Firefox 4.x.x or perhaps 5.0.1-- that it won't create a significant problem of some kind. He has OSX 10.4.11 thanks.

Modified by leapfrogger57

All Replies (1)

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

For an unofficial Firefox 4 compatible version (TenFourFox) that runs on PowerPC Macs with OS X 10.4.11 or OS X 10.5.8 you can look at:

Firefox 3.6.x (Mac OS X 10.4 and later) can be found here: