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!

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'm having trouble trying to upgrade to verison 4.0. How can I revert back to the latest version of Firefox 3.6?

more options

I deleted the latest version of Firefox 3.6 in order to try to download Firefox version 4.0. The download of version 4.0 was unsuccessful, probably because I have an old iBook G4 (10.4.11). How can I reinstall/download the most recent version of Firefox 3.6?

I deleted the latest version of Firefox 3.6 in order to try to download Firefox version 4.0. The download of version 4.0 was unsuccessful, probably because I have an old iBook G4 (10.4.11). How can I reinstall/download the most recent version of Firefox 3.6?

All Replies (1)

more options

For older Macs that aren't supported in Firefox 4.0, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/

You can get Firefox 3.6.16 here:
http://www.mozilla.com/en-US/firefox/all-older.html