Firefox certificate error disabled all extensions for users

A bug in Mozilla's Firefox browser is reportedly disabling all extensions, leaving users clueless about what went wrong.

According to TechCrunch, each extension is being listed as a legacy extension, alongside a warning that it could not be verified for use in the browser and hence, has been disabled.

The issue appears to be related to a code signing certificate built into the browser that expired today, leading to the sudden failure of extensions. Meanwhile, Mozilla worked on a patch to fix the issue.