Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

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
Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.
Ajiyayyu

I installed FF4 on Mac OS 10.4.11. Says it cannot operate with my system. Old FF gone. New FF won't work. HOW DO I RECOVER?

Firefox
Matt Brubeck replied 15 shekaru da suka gabata
JPC811
JPC811

I installed FF4 on Mac OS 10.4.11. Says it cannot operate with my system. Old FF gone. New FF won't work. HOW DO I RECOVER?

I installed FF4 on Mac OS 10.4.11. Says it cannot operate with my system. Old FF gone. New FF won't work. HOW DO I RECOVER?

All Replies (1)

Matt Brubeck
Matt Brubeck

You can re-download the previous version of Firefox from http://www.firefox.com/all-older.html