How can I go back to a previous version of Firefox, like 3.6.X access to company services does not allow Firefox 4
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
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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:
- http://kb.mozillazine.org/Creating_a_new_Firefox_profile_on_Windows
- http://kb.mozillazine.org/Shortcut_to_a_specific_profile
- http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
- https://addons.mozilla.org/firefox/addon/firefox-sync (only needed for Firefox 3.6, it is built into Firefox 4)