That's when you get Auto Tab Discard[1]! You can set a number of tabs and time for each tab after which the extension will start discarding the tab contents and

That's when you get Auto Tab Discard[1]! You can set a number of tabs and time for each tab after which the extension will start discarding the tab contents and leaving a placeholder in place, that will re-load when you move to them. I have a lowest-spec 2014 mbp and I can have hundreds of "open" tabs with no sweat. [1] https://addons.mozilla.org/en-US/firefox/addon/auto-tab-discard/ https://addons.mozilla.org/en-US/firefox/addon/auto-tab-disc...