Doesn't help that Firefox for several years already has had a really annoying leak that happens with random websites (I open FF taskmanager), it starts piling up after weeks of not turning off your PC (I noticed because between Thesis/Work/Warcraft 3 modding and other stuff I just didn't have time to restart all my work every morning) so I'd leave my PC on.

Firefox got to a point where it was consuming 24 GIGS OF RAM, yes, 24, on my 32GB of RAM machine, and you'd say oh but that's still okay, your PC should function properly, nope, once it starts leaking FF starts hogging your PC, even at like 8GBs of RAM it's already hogging the PC.

I don't really know what's going on but FF mods on reddit and such are on denial and gaslight you about it, it's been this way on several operating systems (windows 10 and now 11) and with or without addons (not like I use any special addon, really, just basically Ublock, although now I've started using clickbait remover, sponsorblock and bypass paywall).

For the same amount of tabs open Edge and Brave for example use like 3gbs or less of RAM, even after months.