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

Firefox that I've used for 2 years no longer loading and now flagged as incompatible with my MacOS10.4, and when use Safari to download 3.6.12 get flat that file was not found.

  • 1 reply
  • 2 have this problem
  • 5 views
  • Last reply by TonyE

more options

No other details--because I cannot open the Firefox icon on my desktop cannot see current level browser but would like to be able to download the browser from Mozilla. This is urgent--working at home today.

No other details--because I cannot open the Firefox icon on my desktop cannot see current level browser but would like to be able to download the browser from Mozilla. This is urgent--working at home today.

All Replies (1)

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

If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html