Disabled add-in will not Enable
I disabled 2 add-ins to troubleshoot and isolate a browser issue. Now I want to re-enable them, but after restarting Firefox, as directed, they both remain disabled even though the message is still there to restart. Thanks.
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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":
- 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 do a compatibility check or see if there is a compatibility update available.
Sorry, been away. After a cold boot, not just a Firefox restart, the 2 enabled fine.