My issue with this is that a good chunk of the older tabs end up pointing to 404 errors. I wish it were possible to load the version that was cached when I first visitted a given page, like a local Wayback machine( I also wish that were more aggressive about pulling in pages ...).

Then there's Amazon letting vendors reuse product codes so some pages end up pointing to things I know I've never looked at before and would never try to save like so.

Maybe with tab unloading Firefox doesn’t use a ton of resources for a billion tabs. But my 6 core Mac mini chugs with the way I browse the net. A freshly loaded session vs a “well used” one is like 20% CPU and 16+ gigs of ram. Maybe a fully specced out Mac Pro wouldn’t notice but this 8th Gen. i5 cries in pain.

Almost 7,500 tabs...in 2 years? That's an incredibly short period of time, but too many tabs.

That just seems like an unwillingness to organize or close tabs at all, rather than real sentimental value.

At that point, just back up your browser history every night (of course, after manually removing the sites you don't want there! Lol)