This updates frequently since it is basically Firefox beta (though in practice i never had any issue). Note that this has telemetry enabled by default so you may want to disable it via the options.
The unbranded stable isn't updated automatically so you'll need to check for new versions yourself (shouldn't be too hard to automate it with a python script or whatever that runs via cronjob or windows task scheduler and notifies you for new versions).
This updates frequently since it is basically Firefox beta (though in practice i never had any issue). Note that this has telemetry enabled by default so you may want to disable it via the options.
Unbranded stable: https://wiki.mozilla.org/Add-ons/Extension_Signing#Unbranded...
The unbranded stable isn't updated automatically so you'll need to check for new versions yourself (shouldn't be too hard to automate it with a python script or whatever that runs via cronjob or windows task scheduler and notifies you for new versions).