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I cannot get Firefox 4 to work on Windows 7. How do I get my old version back? I cannot go back using system restore.

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  • Last reply by TonyE

jantelope
jantelope
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I downloaded your new version of Firefox over the weekend. It will not work, cannot get it to open at all and finally I got a messagfe that says it will not work on a 64 bit something or the other? I need my old version back, please!!!! I LOVE Firefox....if it works! My system restore did not go back far enought to restore it.

I downloaded your new version of Firefox over the weekend. It will not work, cannot get it to open at all and finally I got a messagfe that says it will not work on a 64 bit something or the other? I need my old version back, please!!!! I LOVE Firefox....if it works! My system restore did not go back far enought to restore it. <I cannot get Firefox 4 to work on Windows 7. How do I get my old version back? I cannot go back using system restore. >

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TonyE
TonyE
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To downgrade to Firefox 3.6 first uninstall Firefox 4, but do not select the option to "Remove my Firefox personal data". If you select that option it will delete your bookmarks, passwords and other user data.

You can then install the latest version of Firefox 3.6 available from http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your current bookmarks, passwords etc.

To avoid possible problems with downgrading, I recommend going to your profile folder and deleting the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Deleting these files will force Firefox to rebuild the list of installed extensions, checking their compatibility, and reset toolbar customizations.

For details of how to find your profile folder see https://support.mozilla.com/kb/Profiles