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After upgrading to Firefox 10, all my add ons have disappeared. How do I reactivate them

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  • Last reply by grevi91

grevi91
grevi91
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This morning I upgraded to FF 10 from the previous latest version. It was working well. After switching on the computer from standby mode and opening the firefox home page, I was shocked to discover that none of my previous add ons (extensions) were available, even though there were there earlier after upgrading.

This morning I upgraded to FF 10 from the previous latest version. It was working well. After switching on the computer from standby mode and opening the firefox home page, I was shocked to discover that none of my previous add ons (extensions) were available, even though there were there earlier after upgrading.

Chosen solution

I think I have solved the problem. I rebooted my computer, and then restarted Mozilla Firefox. When the web page opened, all the add ons which I had had previously, appeared on the tab bar, with a request to reinstall. After completing all requests and restarting firefox, all the add ons came back as before and were found to be working well. This has solved my problem

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All Replies (2)

cor-el
cor-el
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  • Top 10 Contributor
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It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is a compatibility update available.

You can also check for problems with the file that stores the prefs.

grevi91
grevi91 Question owner
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Chosen Solution

I think I have solved the problem. I rebooted my computer, and then restarted Mozilla Firefox. When the web page opened, all the add ons which I had had previously, appeared on the tab bar, with a request to reinstall. After completing all requests and restarting firefox, all the add ons came back as before and were found to be working well. This has solved my problem