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!

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 downloaded the latest version of Firefox and it says it's not compatible with my MAC operating system (10.4). How can I redownload the old version of Firefox that I had?

more options

I looked all over your website and can't figure it out. Can you provide me with a link to the right version to redownload?

Thanks, Aaronson

I looked all over your website and can't figure it out. Can you provide me with a link to the right version to redownload? Thanks, Aaronson

All Replies (1)

more options