Why is Firefox not updating extension automatically when set to do so?
None of the extension will update, not even when I press check for updates.
Additional System Details
- Shockwave Flash 11.5 r502
- Next Generation Java Plug-in 10.13.2 for Mozilla browsers
- NPRuntime Script Plug-in Library for Java(TM) Deploy
- The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
- Adobe Shockwave for Director Netscape plug-in, version 188.8.131.528
- Adobe Shockwave for Director Netscape plug-in, version 184.108.40.2067
- Adobe Shockwave for Director Netscape plug-in, version 220.127.116.116
- Adobe Shockwave for Director Netscape plug-in, version 18.104.22.1685
- User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Maybe check the related extensions.update prefs on the about:config page.
Can you install a new version of of an extension that has an update available?
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 check if there is a compatibility update available.
If this hasn't helped then also try to delete the addons.sqlite file.