Firefox for Windows

In the past few days, users widely reported that Firefox is not allowing them to install many of the listed add-ons and the existing extensions have been also disabled. Findings revealed that bug is related to an expired certificate and the problem is not because of a software update.

Following a wide-scale report, Mozilla started rolling out a hotfix using its Studies system to enable the disabled extensions and as well as allow installation of new add-ons.

Mozilla has just begun rolling out Firefox 66.0.4 with a fix for the extensions outage bug.  In the release notes, Mozilla has stated that it has included the fix but a small number of add-ons may still be listed as unsupported or not appear in about:addons after the update. However, this should not be a big deal as you can re-install the extensions and the data is not lost.

Firefox browser

For apparent reasons, the data of add-ons such as Multi-Account Containers, Facebook Container and others that use Containers functionality cannot be recovered. You have to setup these add-ons again and login back to continue using them.

Similarly, the themes may not be re-enabled automatically after installing this update, so you may need to re-enable them from add-ons page again. If you used add-on to customize the homepage or search settings, the customizations would reset to defaults and you may need to customize the experience again in about:preferences or about:addons.

Firefox extension update

Download Firefox 66.0.4 to fix extensions bug

You can check for updates on the about page or you can also download the Firefox 66.0.4 offline installer from here.

About The Author

Mayank Parmar

Mayank Parmar is an entrepreneur who founded Windows Latest. He is the Editor-in-Chief and has written on various topics in his seven years of career, but he is mostly known for his well-researched work on Microsoft's Windows. His articles and research works have been referred to by CNN, Business Insiders, Forbes, Fortune, CBS Interactive, Microsoft and many others over the years.