[em-bee]

well i have 4600 tabs, 13 windows, 18 tab groups and 130 firefox processes. htop shows me that while each browser process has about 3GB of virtual memory, all of them barely register any real memory use. so as far as i can tell, tabs do not use any memory.

[ranger_danger]

Ok but those tabs would have to be suspended for them to not use "any" memory.

[em-bee]

right, most tabs are suspended. i also use an extension that automatically suspends inactive tabs, so i don't have more than 20 or 30 tabs that are not suspended.