Yeah, that's it probably, I also notice that when I have certain pages open in tabs on the background, my Framework laptop fans start spinning faster, probably

Yeah, that's it probably, I also notice that when I have certain pages open in tabs on the background, my Framework laptop fans start spinning faster, probably because of JS running on those sites. I don't know whether that wouldn't happen with Chrome, but yeah, if that's the case, then Chrome would have to reload / restore those pages and on Firefox they're still in memory. I rather just close those resource heavy pages, fortunately they're usally not the kinds of pages I need to use too often.