Unusable Firefox extensions? Do not panic

Big surprise for users of the Firefox browser who could see that extensions (or add-ons) were no longer usable because they were considered obsolete. There is a problem with the certificate.

This certificate issue that became invalid affected the execution of existing or new extensions, as well as the installation of extensions. No need to attempt any hack, a patch is being deployed in the background.

Some affected Firefox users are already starting to find the use of their extensions.

To speed up the distribution of the patch, Mozilla uses the Studies system, which is activated by default. If necessary, go to the Firefox settings for privacy and security, and authorize Firefox to install and launch studies.

firefox-studiesOnce the fix has been obtained (which may nevertheless take time), the parameter (for studies) can be deactivated if necessary. Mozilla is working on a global fix that will not require relying on the Studies system.

firefox-about_studiesNote that to find out if the intermediate certificate (the fix) has been obtained, simply enter "about: studies" in the address bar. It is identified as hotfix-update-xpi-signing-intermediate-bug-1548973.