Maybe a new browser will rise from Firefox's ashes. Perhaps we should call the fork Phoenix?
Zen Browser is pretty cool and it's not just a fork
One of the best things I did for sleep anxiety was to NOT have a bedroom clock at all, my phone goes face-down, I disabled my watch's auto-backlight functions, and I've tried very, very hard to not try and figure out the time once I'm "going to bed." Thankfully my e-reader also doesn't have a clock displayed unless you tap something, so if I wake up, I can read (with an orange book reading light) until I'm sleepy.
The only lights I have that are on once I'm in bed are red LED night-lights (finding them was surprisingly tough.)
Literally never has determining what time it is helped me get back to sleep.