Hacker News Reader

As a tab Horder I also use FF, though it gets very slow with 100 tabs after some time on OS X (iMacPro).

Really? I have, right now, 290 opened tabs dangling from the hacker news homepage and about 20 other "root" tabs with more trees.

All in all, ~450 opened tabs in 6 different containers.

Firefox is using ~8% of CPU and 670MB of RAM. Macbook Pro retina mid 2012.

After two weeks open? Then there is something I'm doing wrong.

Not sure what to tell you... If I remember correctly, the last time I restarted Firefox was to update it, around the 5th of May (I have version 76.0). Generally speaking I don't restart it (or the laptop) except for that.

No addons other than uBlock Origin, TST and LastPass.

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