Mistakes happen, it's okay. But users should be empowered to work around them.
The issue is that if you leave any sort of lever that reduces security, it will be abused by bad actors. This is why browsers are having ever decreasing ways to bypass security and have full access. It is annoying, but at the end of the day, protecting 99.999% of the users trumps what us power users want.
It is horribly paternalistic to advocate for keeping users ignorant, unlearning, and --- dare I say it --- easily manipulated.
I will refrain from mentioning again that infamous Franklin quote. I am frankly very fucking pissed off by this authoritarian walled-garden trend, and vehemently oppose anyone who helps this industry put the nooses around the necks of others as well as their own.
If you want your freedom from reviewed extensions: fine, get an unbranded Firefox, or Developer edition, and you get that.
If you can recommend an fork that allows extension sideloading but is kept up to date, please do so, I’ve been looking...
Unbranded Firefox is actually a specific version of Firefox distributed by Mozilla, which allows you to disable extension signing requirements. I am very glad to see that they offer this, and I will be using it from now on.
https://wiki.mozilla.org/Add-ons/Extension_Signing#Unbranded...