> Open new windows more quickly. Firefox feels sluggish (on Mac)
I assume you mean new tabs?
That's very quick on Windows using FF 72. Interestingly that's been a long-time annoyance of mine when using Chrome on Mac - when compared to Safari which shines here.
Many of my workflows begin by opening an new empty browser window. I also tend to open links in new windows instead of tabs. I'm not a huge fan of tabs generally.
