[hiq]

Did you have ublock origin installed on Firefox?

I feel that most people complaining about slow browsers have no blocker installed.

[sodality2]

My CPU immediately pumps to 100% usage after opening google docs. Granted, it's on my old laptop, but I can use electron apps and they run far better than gdocs.

[kiwijamo]

Interesting, I have uBlock Origin and indeed I can't tell the difference between Chrome and Firefox.