fun fact, you can kill all firefox background processes and basically hand-crash every tab and just reload the page in the morning. I do this every evening before bed. `pkill -f contentproc` and my cpu goes from wheezing to idle, as well as releasing ~8gb of memory on busy days.

("Why don't you just close firefox?" No thanks, I've lost tab state too many times on restart to ever trust its sessionstore. In-memory is much safer.)