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I installed newer Firefox, now parts of Norton and Words do not function. How can I fix this? Go back to previous Firefox? Thanks.

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  • Laatste antwoord van TonyE

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I installed the latest version of Firefox when I was prompted. It was not until after the process was complete was I informed that certain aspects of my Norton and Words programs would not function, and that currently there is no fix available. How can you resolve this? Can I go back to the previous version?

Thanks Mark

I installed the latest version of Firefox when I was prompted. It was not until after the process was complete was I informed that certain aspects of my Norton and Words programs would not function, and that currently there is no fix available. How can you resolve this? Can I go back to the previous version? Thanks Mark

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Symantec need to update their Firefox add-ons so that they are compatible with Firefox 4. They have released an update for Norton 360 to make it compatible with Firefox 4, for details see http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20100720113635EN&ln=en_US

I do not know about other Norton products, but if you run Norton LiveUpdate it should inform you if there are updates available. If no updates are available, you can downgrade to Firefox 3.6 if you want to use the Norton add-ons.

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