I went for "Snooze Tabs": https://addons.mozilla.org/de/firefox/addon/snoozetabs...

		Krasnol on Jan 28, 2021 \| parent \| context \| favorite \| on: Vivaldi 3.6 Introduces Two-Level Tab Stacks I went for "Snooze Tabs": https://addons.mozilla.org/de/firefox/addon/snoozetabs/ You can set a date&time it will open again. It's perfect. I can better split private and business stuff, regular pages I re-visit and so on.