I know it would break many extensions but I am of the opinion the architecture is all wrong. There instead should be clear APIs for some access to page content

I know it would break many extensions but I am of the opinion the architecture is all wrong. There instead should be clear APIs for some access to page content (for example, right-click context menus, tab control without content access, etc). The idea will probably be met with opposition because I didn’t explain it well enough, but maybe someone will get the idea hah. I’ve worked on large chrome extensions that heavily rely on hacking UI on top of page content and it’s truly awful. Everything you do feels liked it will break at the setup of a feather, because it does. Sure, there are some ways of making that LESS painful, but at the end of the day it will always be dirty hacks.