I feel like in a thread like this, Asana deserves a shout-out for utterly fucking up the UX in any firefox version I've tried, up to and including nightly.
Typing in the various text input fields has ~1s of lag. It's a TEXT FIELD for fuck's sake!
Typing in the various text input fields has ~1s of lag. It's a TEXT FIELD for fuck's sake!
If you have free time, I'd pop open Chrome Dev Tools, run a performance monitor on both and try to diff out what each of those products do that cause the additional input lag (if there's no code obfuscation).
It can take upwards of one full minute for text to start appearing when typing tags.
The problem is that the front-end ecosystem encourages pulling in megabytes of third-party crap for every little thing (including poorly reinventing existing browser functionality) and the result is that some interaction between all that mess causes an entire page redraw upon every keystroke or similar.