08 July 2019
Mozilla has released a fix for a bug that prevented Firefox users from installing new extensions. In fact, existing add-ons stopped working due to this bug as well. But Mozilla wasn’t too late to explain that this issue occurred due to certificate expiration. Now a fix inside an update with the version 66.0.4 has been released to the Firefox users on Desktop and Android, and version 60.6.2 for ESR. These releases “repair the certificate chain to re-enable web extensions, themes, search engines and language packs that had been disabled.”
It’s the digital certificate that Mozilla was using to sign Firefox add-ons expired. After the expiration, Firefox browsers couldn’t verify the authenticity of locally-installed extensions and hence disabled all add-ons in the browsers. Thus users found difficulty in re-enabling the extensions and installing new ones.
Before the release of the fix, Mozilla did promise that an update will get initiated soon and no one would need to take any extra steps to make add-ons work again. It was advised that users shouldn’t try deleting and re-installing the extensions as this would remove any accumulated data.
Before this update, many users tried some turnarounds and were searching for ways that could guide them to re-install the extensions on their browsers.
Also, the Tor browser which is a Firefox-based off-shoot also relies on Mozilla’s add-ons site for extensions. So, it also underwent the same issue.