Can I uninstall 4.0 and resume 3.6?

4.o Firefox does not support some features that I really need (for example Norton safe ID, citicard / discover the virtual account numbers).

Can I uninstall 4.0 and back using 3.6?
Thank you.

Symantec needs update their Firefox Add-ons to make them compatible with Firefox 4. They indicated that, for Norton 360, they plan to release a update of Norton 360 to support Firefox 4 in early may - http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web & docurl = 20100720113635EN & ln = en_US

I don't know about the time scale for the updates for other Norton products.

Waiting for the update by Symantec, downgrade to Firefox 3.6 first of all uninstall Firefox 4, but do not select the option 'remove my Firefox personal data '. If you select this option, it will delete your bookmarks, passwords and other user data.

Then you can install the latest version of Firefox 3.6 available to http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your favorite courses, passwords etc.

I recommend, to avoid possible problems with decommissioning, accessing your profile folder and delete the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Delete these files will force Firefox to rebuild the list of installed extensions, check their compatibility and cancel the toolbar customizations.

For more information on how to find your profile folder, see https://support.mozilla.com/kb/Profiles

Tags: Firefox

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