Is firefox a lost cause?

The browser claims to pioneer open source yet implements DRM/EME

they've added a social media Hello! messenger thing to the browser itself, but that has nothing to do with web

now it just started including some weird "pocket" feature that's related to a cloud company in the source tree itself, not just as an addon

Revenue-impacting Changes

Effective as of Firefox 38

Firefox has a number of features that have revenue-bearing components, generally in the form of partnerships or paid placements. These features include Search, Tiles, and other potential features. Except where otherwise agreed under a formal custom distribution agreement, no changes shall be permitted that negatively impact the revenue potential of these features. This includes changes that would be otherwise permitted within the scope of an add-on under the AMO policy.