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

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

How can I rollback to ver 3.6 from ver 4?

  • 2 பதிலளிப்புகள்
  • 24 இந்த பிரச்னைகள் உள்ளது
  • 110 views
  • Last reply by mudd

Firefox 4 is causing me too many problems* and I'd like to go back to version 3.6. Can I re-download version 3.6 and install it over the top of version 4? Where can I download it?

Thank you.

  • problems: slow starting, page loading, more than doubled RAM usage, crashes, incompatible extensions/add-ons.
Firefox 4 is causing me too many problems* and I'd like to go back to version 3.6. Can I re-download version 3.6 and install it over the top of version 4? Where can I download it? Thank you. * problems: slow starting, page loading, more than doubled RAM usage, crashes, incompatible extensions/add-ons.

All Replies (2)

Looks like I found the version 3.6 download page myself:

http://www.mozilla.com/en-US/firefox/all-older.html

Another answer to this question suggests uninstalling version 4 first, but I'm going to try installing 3.6 over the top of 4 so I hopefully don't lose my add-ons, etc.

Update: I was able to simply install version 3.6 over the top of version 4 with no problems, and all seems to be working well again, including my old add-ons.