An add-on disappeared
I'm using 17.0.1. AdBlock Plus has disappeared on me, and I can't find it. I tried reinstalling it, but that didn't work. I went to the extensions list, but all I get is a blank page. I already tried going into my profile folder and removing the extensions files so that they would be rebuilt upon restart, but that didn't fix my problem. I haven't installed anything new recently.
Solution choisie
Make sure that you select the Extensions tab if you open the about:addons page (Tools > Add-ons > Extensions)?
Did you also delete compatibility.ini ?
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":
- http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
- https://support.mozilla.org/kb/Unable+to+install+add-ons
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 check if there is a compatibility update available.
If this hasn't helped then also try to delete the addons.sqlite file.
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Make sure that your not running Firefox in safemode.
To Quit Safemode
- Firefox Menu - File > Exit.
I'm definitely not in safe mode.
So your localstore.rdf file may be corrupted
Solution choisie
Make sure that you select the Extensions tab if you open the about:addons page (Tools > Add-ons > Extensions)?
Did you also delete compatibility.ini ?
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":
- http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
- https://support.mozilla.org/kb/Unable+to+install+add-ons
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 check if there is a compatibility update available.
If this hasn't helped then also try to delete the addons.sqlite file.
Modifié le par cor-el
I'd missed removing compatibility.ini before. Thank you very much.