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After upgrading to Firefox 9.0.1, on first run after every reboot, the following warning apears for every installed Add-on. "Another program on your computer would like to modify Firefox with the following add-on"

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  • Last reply by Fameli

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After upgrading to Firefox 9.0.1, on first run after every reboot, the following warning appears for every installed Add-on. "Another program on your computer would like to modify Firefox with the following add-on" So, i have to "Enable" my installed Add-ons on each reboot. Would you please help me !

P.S.: I found that these files (and some others) will be deleted on each reboot, and it happens on computer start up (not at shut down)! extensions.ini extensions.sqlite extensions.sqlite-journal And as i mentioned, i have the same anti virus on my laptop and desktop, but i have not any problem on laptop.

After upgrading to Firefox 9.0.1, on first run after every reboot, the following warning appears for every installed Add-on. "Another program on your computer would like to modify Firefox with the following add-on" So, i have to "Enable" my installed Add-ons on each reboot. Would you please help me ! P.S.: I found that these files (and some others) will be deleted on each reboot, and it happens on computer start up (not at shut down)! extensions.ini extensions.sqlite extensions.sqlite-journal And as i mentioned, i have the same anti virus on my laptop and desktop, but i have not any problem on laptop.

Modified by Fameli

All Replies (2)

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Do you have security software that acts like a sandbox or uses virtualization to restore files on a next boot?


See also:


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.

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Dear "cor-el" Thank you for your attention, but i couldn't solve the problem yet. I have the same Security software and the same extensions installed, on my laptop and desktop, but there is no problem on my laptop. Have you any suggestion rather than you prefer ?