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

This version of Firefox says it is not compatible with my laptop, a Mac OS X version 10.4.11 - how can I make it work, as I need Firefox to help with my new job?

  • 4 cavab
  • 6 have this problem
  • 1 view
  • Last reply by James

more options

Question This version of Firefox I just downloaded today, 10 Aug 2011, says it is not compatible with my laptop, a Mac OS X version 10.4.11 - how can I make it work, as I need Firefox to help with my new job? Is there an earlier form of Firefox that will be compatible with my computer? Thanks.

Question This version of Firefox I just downloaded today, 10 Aug 2011, says it is not compatible with my laptop, a Mac OS X version 10.4.11 - how can I make it work, as I need Firefox to help with my new job? Is there an earlier form of Firefox that will be compatible with my computer? Thanks.

All Replies (4)

more options

As of Firefox 4.0 and newer, both OSX 10.5+ and a Intel Mac is required.

The last version to work on OSX 10.4.x is the Firefox 3.6.* where current version is at http://www.mozilla.com/en-US/firefox/all-older.html


You can get the third-party tenfourfox builds for OS X 10.4.x or OS X 10.5.x at http://code.google.com/p/tenfourfox/

Your best bet is the Firefox 5.0 builds. The 4.0.2/4.0.3 versions are not based on builds from Mozilla as last was 4.0.1 and the 6.0b1 test build is old as 6.0b5 is current.

more options

Thank you very much for this speedy response - much appreciated! I will attempt to translate your tecchie language (sorry - I am a neanderthal!) and try to download an appropriate version. Hope it works!!!

many, many thanks!

more options

YES!!!!!!!!!!!! It works!!!! I downloaded the firefox 3.6 version as you suggested, and it all happened! I have now begun my training for my new job. I couldn't have done this without your very kind help.

Thank you! Thank you! Thank you!

more options

Your welcome and good luck on job.