I've had a lot of unstable behaviour on Firefox, ironically, from the stable branch. Moving to the beta channel a couple of years ago solved most of my issues.

I've had a lot of unstable behaviour on Firefox, ironically, from the stable branch. Moving to the beta channel a couple of years ago solved most of my issues. And I've absolutely loved the Quantum upgrades so far, even though some seemed a bit iffy at first[0, 1]. [0] the roadmap to get GPU support on WebRender for example -- but I guess in time we'll see how that turns out. [1] one which I had a few issues was the multiprocess approach. That brought me some trouble at first but in the end got ironed out just fine.