Le 04/05/2019 à 18:50, Curt a écrit : > On 2019-05-04, Jonas Smedegaard <jo...@jones.dk> wrote: >> It is an error in Mozilla infrastructure upstream - they have fixed it >> by abusing a backdoor in Firefox to update a certificate, but Debian >> has that backdoor disabled by default. >> >> https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-fire >> fox/ > Note that the fix does not apply to Firefox ESR (which the OP is using). >
There are other possibilities at https://www.ghacks.net/2019/05/04/your-firefox-extensions-are-all-disabled-thats-a-bug Hope one of them will work for OP