We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

downloaded 4.0 and it will not run on my version of OS X

more options

I have a MAC OS X 10.4.11. I downloaded Firefox 4.0 and when I went to run it, it says "can not run with current version of OS X".

I need to either get to run 4.0 or to run the Firefox version I way previously using. I am at a loss and really would appreciate help to get back to Firefox.

Thanks, Don Costanzo

I have a MAC OS X 10.4.11. I downloaded Firefox 4.0 and when I went to run it, it says "can not run with current version of OS X". I need to either get to run 4.0 or to run the Firefox version I way previously using. I am at a loss and really would appreciate help to get back to Firefox. Thanks, Don Costanzo

Alla svar (1)

more options

You can get an unofficial, community-supported version of Firefox for 10.4 here:

http://www.floodgap.com/software/tenfourfox/