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!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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.

Reinstall old firefox version

  • 1 amsa
  • 1 yana da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga cor-el

aptreloar
aptreloar
more options

I recently downloaded the new version of Firefox and dragged it to the application folder. When it asked if I wanted to retain or replace the existing version I clicked replace. Then I found my computer is too old to run the new version. Can I still get and download the previous firefox browser version?

I recently downloaded the new version of Firefox and dragged it to the application folder. When it asked if I wanted to retain or replace the existing version I clicked replace. Then I found my computer is too old to run the new version. Can I still get and download the previous firefox browser version?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Firefox 78.15.0 ESR is the last version for Mac OS X 10.9/10.10/10.11 and you will no longer receive updates.

Firefox 78.15.0 on the Mozilla CDN server:

Mac OS users on OS X 10.12/10.13/10.14 have been moved to the 115 ESR update channel since your macOS X 10.14 platform no longer is supported, current releases require macOS 10.15 as a minimum.