On Friday, a large number of Firefox users discovered some add-ons that previously worked fine were no longer functional. Attempts to download new extensions from Firefox’s online archives also failed to install successfully, leaving many users unhappy with their browser not functioning how it normally would.
An addition to a post on changes in add-on policies reveals a certificate expired on May 3, causing the extension failures. A follow-up post on May 4 advises the issue was identified and a temporary fix rolled out to all Firefox Desktop users on the Release, Beta, and Nightly builds, which would be automatically applied in the background within 24 hours.
