I was testing out the extrepo tool and noticed that they have a configuration for an official Mozilla apt repository https://packages.mozilla.org/apt, which contains an updated version 128 of the firefox-esr package.

The repository setup process is documented on their support site at https://support.mozilla.org/en-US/kb/install-firefox-linux.

Does anyone know what the differences are between the Mozilla firefox-esr package and the Debian firefox-esr package?

Tom