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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

How can I go back to a previous version of Firefox, like 3.6.X access to company services does not allow Firefox 4

  • 1 freagra
  • 8 leis an bhfadhb seo
  • 4 views
  • Freagra is déanaí ó TonyE

surquhart
surquhart
more options

Company web server is not allowing a connection using Firefox 4.0. Really like Firefox but need to revert to a previous version like 3.6.?

Or if possible I'd love to run both 4.0 and 3.6, but not sure that is possible

Company web server is not allowing a connection using Firefox 4.0. Really like Firefox but need to revert to a previous version like 3.6.? Or if possible I'd love to run both 4.0 and 3.6, but not sure that is possible

All Replies (1)

TonyE
TonyE
  • Moderator
more options

You can install them both but there are a few steps to take.

When you install the other version of Firefox use the custom installation option and choose a different location to install Firefox.

In order to use both versions, you need to create a new profile for the other version of Firefox (Firefox stores user data in the profile). Using the same profile with different versions can cause problems. Once you create a new profile you can copy certain data such as bookmarks and passwords between them. You can also use Firefox Sync to keep the profile synchronized. Finally, you will need to set up shortcuts to launch the correct profile for each version.

The following links show how to do this: