[mymac]

Interesting. I routinely have 100's of tabs open on a 10+ year old thinkbook with 16G in it (they were only sold with 8 at the time but replacing the two 4G modules with 8G modules worked, 16G does not seem to work).

Firefox has an about:performance gizmo that can tell you which tabs are misbehaving, this has already led to me blacklisting some sites completely, others just to close when not in use. Especially image carrousels can be very resource hungry.

[lost_tourist]

modern browsers don't really keep hundreds of tabs open, they just keep a place holder and then return the memory back to the system as resources get low. I'm not sure why people think a browser can keep 100s of webpages open when modern webpages (tabs) often use 100MB->1GB of memory.

[dredmorbius]

Browser memory management has been improving, but when that system was last running, let's just say that things were bad.

[dredmorbius]

SSD or HDD?

16 GB would be about 8-16x what the system I'm describing had.

How are you blacklisting sites? Pihole/DNS, or something within Firefox itself?

[amenhotep]

1 or 2 GB of RAM? Yeah, that would've been the problem. Old CPUs can handle more than people think but there's absolutely no getting away from modern memory demands.