Ok right now we know that Mozilla fired :
- The servo team
- a security response team
- dev tools people
- the entire MDN team
Source : some tweets on birdsite
If these informations are true, the future is looking very dark for 
 
 And now that Mozilla officially stated that they're shifting their focus to sell services like pocket or VPNs I'm starting to consider switching browser 
If I take chromium route, I'll probably choose either ungoogled chromium or a qt-webengine based browser