Simply follow the money and it all becomes much clearer.
For over a decade, Mozilla has been a defacto Google subsidiary --- subversively supporting their goals as needed. All the while pretending to be a promoter of a "free" internet but actually achieving little in this regard --- just the way Google wants it.
The final nail in this coffin is the fact that Mozilla is now inexplicably arguing *for* a Google browser monopoly.
https://blog.mozilla.org/en/mozilla/internet-policy/google-r...
It's time to wake up and smell the coffee --- the only thing Mozilla really wants/needs is Google.
Move along, nothing to save (because that would require sane-porting tens of millions of code in plain and simple C99+, to, at least, decouple the code from the other abominations: gcc and clang).
This is just vendor (open source or not) lock-in by complexity and size, and I recall people here, 100% of critical/utility site weres providing more than a fine service a few years ago being noscript/basic (x)html....................