On the topic of user freedom, Firefox also doesn't allow installing extensions not signed by Mozilla unless you use a fork, Nightly, or Developer Edition (which is just a badly named beta)[0]. The hilarious thing is that Safari, the web browser from the company infamous for walled gardens and not letting you control your device, does let you install unsigned extensions on desktop[1].
This is actually no different from Firefox: "The Allow Unsigned Extensions setting resets when you quit Safari; set it again the next time you launch Safari."
You can run an unsigned add-on in regular Firefox by opening about:debugging#/runtime/this-firefox and clicking Load Temporary Add-on...
In both cases, it only lasts until you quit the app.
You can run an unsigned add-on in regular Firefox by opening about:debugging#/runtime/this-firefox and clicking Load Temporary Add-on...
In both cases, it only lasts until you quit the app.