Looks like they're adding far more than they're removing.
It is a false dichotomy. It is entirely possible to add features without removing existing ones.
Oh wait, you don't mean web features, you mean UI features
The web browser is the interface between the user and the Web. The UI is not unimportant.
If Microsoft gets lambasted every so often for changing the UI of MSOffice for no good reason, Mozilla shouldn't get a free pass.
a few people are too proud to install addons to get back
Your assumption that useful addons will be maintained forever and will never become useless due to breaking API changes is optimistic at best.
Right, I should have known.
Kindly stick to the point.