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.

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

Why will Firefox 4 not run on my Mac G4, OS 10.4.11?

  • 2 svar
  • 58 har dette problemet
  • 7 views
  • Siste svar av cliveeric

more options

When prompted and encouraged by you yesterday I downloaded Firefox 4. However it was not possible to use it because it came up with the message that It "is not supported by this architecture" I then found that I could not run my earlier version of Firefox 3.6.16. So I had to delete all firefox versions, and redownload version 3.6.16 losing various previous settings in the process. I am now using the old version once more quite successfully but I am concerned that you will not be supporting it for very long

When prompted and encouraged by you yesterday I downloaded Firefox 4. However it was not possible to use it because it came up with the message that It "is not supported by this architecture" I then found that I could not run my earlier version of Firefox 3.6.16. So I had to delete all firefox versions, and redownload version 3.6.16 losing various previous settings in the process. I am now using the old version once more quite successfully but I am concerned that you will not be supporting it for very long

All Replies (2)

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

more options

thank you Tony, the further question I want to put to Firefox is why they are offering version 4 to everyone without making it clear that one needs at least OS X 10.5 and an intel MAC. It would have saved me a heck of a lot of work. Nowhere on the Firefox site can I find any avenue for actually contacting anyone at Firefox.