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Firefox does not show add-ons and extensions

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After downloading a freeware program loaded with malware/spyware i set about restoring the system overnight to find nothing showing in the add-ons, extensions and appearances section. Even clicking on 'get add-ons' section does not take me to the site as it used to, as it just continuously tries to load. I deleted the extension files (e.g. sqlite, ini, rdf) as suggested in previous posts but this did not fix the problem. Would i need to reset Firefox and if so will i lose all my bookmarks and add-ons?

After downloading a freeware program loaded with malware/spyware i set about restoring the system overnight to find nothing showing in the add-ons, extensions and appearances section. Even clicking on 'get add-ons' section does not take me to the site as it used to, as it just continuously tries to load. I deleted the extension files (e.g. sqlite, ini, rdf) as suggested in previous posts but this did not fix the problem. Would i need to reset Firefox and if so will i lose all my bookmarks and add-ons?

All Replies (6)

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https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems

What does the reset feature do?

All of your Firefox settings and personal information are stored in your profile folder. The reset feature works by creating a new profile folder for you while saving your most important data.

Firefox will try to keep the following data:

    Bookmarks
    Browsing history
    Passwords
    Cookies
    Web form auto-fill information 

Most everything else is saved to a folder on the Desktop, should you want to revert from the reset.

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Did you delete compatibility.ini and addons.sqlite as well?

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I could not find any compatibility.ini or extension ini. file/s in the folder, however i found the addons.sqlite which i deleted but this did not fix the problem. In fact, i don't see any .ini files at all. I have attached screenshot with list of files

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The compatibility.ini file shows as compatibility

Windows hides some file extensions by default.
Among them are .html and .ini and .js and .txt, so you may only see a name without file extension.

You can see the real file type if you open the Properties via the right-click context menu.

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Deleting both the extension ini and the compatibility ini files fixed the problem

Thank You