I was wrong on WebExtensions

WebExtensions > legacy addons.
Firefox legacy addons basically have unrestricted, full access to everything browser does.
They are barely step behind ActiveX. They can download arbitrary data and execute it.

>>17
airgapping is security too. anyway, I'm not defending the mobile industry practices. but there's difference between that shit and security. a well-configured Linux server is secure but it doesn't mean you as its owner don't have control over it.