It's interesting that every time this comes up people talk as though the only vector for a malicious script running on your site is you serving it yourself. A r

It's interesting that every time this comes up people talk as though the only vector for a malicious script running on your site is you serving it yourself. A reminder that browsers have a ridiculously lax permissions/security model for extensions which extension developers have been shown again and again to abuse (see the Stylish incident for instance).