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Ran a previous version of FF, then closed and ran regular (5.0) version, but some add-ons, toolbars, and other stuff has disappeared. How can I get this stuff back?

  • 4 replies
  • 2 have this problem
  • 2 views
  • Last reply by Solvoid

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I have been running 5.0 great for a while now, but today I tried downloading and running FF 3.6. As it was opening it stopped responding, but then I tried to force quit but then it worked and loaded up the pages I had open on 5.0 when I closed it.

I then closed the 3.6 version and ran the 5.0. I noticed a few things were gone or different... ~Several add-ons/extensions and toolbars were gone. Some of them were: Adblock Plus, Read it Later (and all its saved pages), Stumble Upon toolbar.... and more I am not sure of... ~Some of the saved sessions in my Session Manager add-on were gone. ~FF 5 seems to not be asking if I want to save my pages whenever I quit. ~The settings for how my tabs appeared has changed also... Like the color of text and where a new tab goes when I click on a link (to the right of the current tab or all the way to the right)... I am not sure if this is because of an associated add-on/extension being deleted.

UPDATE: I checked my profile folder and all of the extensions' data is all still there but FF5 is just not reading it correctly. (like adblock plus... I see the folder for it but FF5 doesn't have it on the add-on manager page when I run FF5) (The stumble upon toolbar folder is also in my profile folder but is not showing up in View->Toolbars when I actually run FF5)

Any help would be extremely appreciated. Thanks!

I have been running 5.0 great for a while now, but today I tried downloading and running FF 3.6. As it was opening it stopped responding, but then I tried to force quit but then it worked and loaded up the pages I had open on 5.0 when I closed it. I then closed the 3.6 version and ran the 5.0. I noticed a few things were gone or different... ~Several add-ons/extensions and toolbars were gone. Some of them were: Adblock Plus, Read it Later (and all its saved pages), Stumble Upon toolbar.... and more I am not sure of... ~Some of the saved sessions in my Session Manager add-on were gone. ~FF 5 seems to not be asking if I want to save my pages whenever I quit. ~The settings for how my tabs appeared has changed also... Like the color of text and where a new tab goes when I click on a link (to the right of the current tab or all the way to the right)... I am not sure if this is because of an associated add-on/extension being deleted. UPDATE: I checked my profile folder and all of the extensions' data is all still there but FF5 is just not reading it correctly. (like adblock plus... I see the folder for it but FF5 doesn't have it on the add-on manager page when I run FF5) (The stumble upon toolbar folder is also in my profile folder but is not showing up in View->Toolbars when I actually run FF5) Any help would be extremely appreciated. Thanks!

Modified by Solvoid

All Replies (4)

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I think some of your extensions are not compatible with Firefox 5.

You can try this extension to override compatibility issues,

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Thanks but I don't think this will help. Like I said, all of my add-ons were working fine and compatible until after running a previous version of FF. I am sure they are still compatible, but they are not working at all.

I even checked my profile folder and all of the extensions' data is all still there but FF5 is just not reading it correctly. (like adblock plus... I see the folder for it but FF5 doesn't have it on the add-on manager page when I run FF5)

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If you enable an addon and it doesn't work with latest Firefox version, you have to contact the addon developer about this, because addons are not developed by Mozilla.

Addons.mozilla.org website has a "support section" at the right column of each addon page, which contains a link to support website or email. If that's absent, click author's nickname at the top of the page to see if they provide contact means.

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Thanks for your reply... but apparently I was not clear enough.

The missing add-ons were not showing in the add-on manager page at all, and thus could not be enabled or disabled.

Also I have already solved this problem by simply re-downloading and re-installing the add-ons. All of the settings were restored to how they were before (also my reading list for Read it Later was exactly how I left it), after I re-installed the add-ons.