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> Firefox will now detect if your computer’s memory is running low, which we define as lower than 400MB, and suspend unused tabs that you haven’t used or looked at in a while.

https://blog.mozilla.org/blog/2019/05/21/latest-firefox-rele...

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This really needs to be an OS-level toolkit thing, like on iOS. It's nutty to have applications inspecting system memory use to figure out if they should take pressure off. Ideally I'd be able to suspend entire desktop sessions and all the applications in them, then open a new, clean one, then go back to the old one later. Task-based (work, vacation planning, book research, et c.) GUI session suspend/resume is my #1 most-wished-for feature for a desktop OS but it needs that basic app-suspension support, integrated by the app makers themselves, to work.

This. In the meantime, I'll settle for a real session save/resume in MacOS. I have to reboot often and "restoring" is a mess.

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