>>106327453
Nah, Firefox has memory issues. It's good to close it and reopen it every once in a while. It's far from a unique issue though, plenty of apps work that way, unfortunately. I'm not excusing it, it's just the truth.
Also, extensions shouldn't normally be a big deal even if you have a significant number of them, unless you have one that's bugging out. For example, I let Malwarebytes install their extension and it completely nuked my performance, even simple tabs were taking ages to load. And Dark Reader screws up and gets stuck on some pages, but it's rare.