Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

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

I dl'ed V. 4.0 and it will not run on my Mac with OS 10.4.11. What to do? I trashed v.3.0 and it is lost.

  • 1 reply
  • 3 have this problem
  • 3 views
  • Last reply by TonyE

more options

I dl'ed V. 4.0 and it will not run on my Mac with OS 10.4.11. What to do? I trashed v.3.0 and it is lost.

If V.4.o is not supported by my OS, can I dl the previous version (3.0)?

I dl'ed V. 4.0 and it will not run on my Mac with OS 10.4.11. What to do? I trashed v.3.0 and it is lost. If V.4.o is not supported by my OS, can I dl the previous version (3.0)?

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