Firefox Quantum: BIG browser project, huh? I share your concern

What Mozilla's browser rewrite means to... Mozilla

Open source insider Mozilla has been rolling out a major change to Firefox during the last year, the results of what the company calls its Electrolysis project. Electrolysis gives Firefox something Chrome has had for years now - multiple processes (in the best case scenario that's per tab). The change is a boon for speed - somewhere Firefox has been lagging lately - and it improves stability and security."