The feature is called Tab Unloading, and weirdly enough they made it not easy to access despite its usefulness.
You basically have to type about:unloads in the address bar and hit enter. If you then click on โUnloadโ, it will put the least used tabs to sleep. If you keep clicking that button until itโs greyed out, youโll have unloaded all your tabs from memory.
This feature is handy if you want to temporarily switch to something that is memory hungry without having to close your 100 tabs.
This, if you want to act on something later, just create a bookmark and set a reminder, act on what you need, then close and move on, donโt clutter your browser and your head.
Usually, i open one window for each task, so i donโt get a lot of unrelated content mixed up and loose focus. I rarely need more than 1~5 tabs.
