It was for me as well, but lately I have been experiencing incredible slow-downs in Firefox. I thought it must be my imagination until I tried other browsers and the difference was like between day and night. Firefox is just too slow, even with their new engine.
I saw similar results on my MBP, with Chrome scoring ~90 and Firefox scoring ~60. Not enough to outweigh my reasons for using Firefox, but interesting.
Ditto. I spent about 6 months using Quantum on Linux. While it's a lot faster than old Firefox, it's still got a lot of issues - random crashes, random hangs, high memory and cpu usage. I got so frustrated, I decided to go back despite my privacy concerns. Unfortunately, nothing comes close to Chromium on Linux.
How is it not? I remember being bombarded with news along the lines of 'New Firefox is blazingly fast!'. Which one is that? How do I get a version that has the new engine?
The part that shipped was Electrolysis which splits the formerly giant-single-processed Firefox into a set of 1-9 processes which work as task pools for tabs. Locking one tab hard will lock only that tab, and any others sharing that Electrolysis worker I believe.
The new upcoming part is Servo, the rendering engine written in Rust.
Problem is when something crashes on Firefox it still tends to take everything with it. This is very annoying when developing something. Often when you have bad code as you are creating or changing things.
So for developing I still prefer Chrome. Besides that Firefox since quantum been very nice.