> I'm using Firefox Preview regularly for a few month now, and it really is a huge step up in performance. Javascript and CSS-heavy sites now behave as they sho

> I'm using Firefox Preview regularly for a few month now, and it really is a huge step up in performance. Javascript and CSS-heavy sites now behave as they should, and browsing feels smooth overall. Everyone keeps saying this, but I haven't experienced it myself, and haven't seen any objective evidence for it. On objective benchmarks that I've tried, Preview is maybe 5-10% faster at best. Subjectively I haven't noticed a difference. They also slowed down the GUI animations to the point where it's visibly slow to me (and maybe a little janky too?). I prefer the older Firefox for Android for that reason alone. (Then again that may just be a personal preference: I switch the Android animations to double speed in the developer options.) Totally agree with you on the rest of your complaints. They all ring true for me, individually and together.