Every time I start up Firefox, it always prompts me to reisntall the same pile of add-ons and extentions; I install them; still happens; why?
Regarding Firefox 16.0.2. Every time I start up Firefox, especially after a period with my comp in standby mode, I am always asked to install several add-ons and extentions. Always the same ones, and always several. I install them, again and again, yet I am still always prompted to reinstall every time I start Firefox. I've always had this batch installed, but I don't know why it keeps telling me to reinstall them.
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Some security software has virtualization or sandbox features that may cause problems by protecting and restoring files in the Firefox profile folder.
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":
- 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.
If you do not keep changes after a restart then also see: