Auto Tab Discard[1] does it automatically after a time. Tabs can be set to not get discarded, eg when form elements with changes are present, media is playing,

Auto Tab Discard[1] does it automatically after a time. Tabs can be set to not get discarded, eg when form elements with changes are present, media is playing, tab is pinned, or just whitelisting. https://addons.mozilla.org/en-US/firefox/addon/auto-tab-discard/ https://addons.mozilla.org/en-US/firefox/addon/auto-tab-disc...