Amazing extension, only one I've seen that lets you discard multiple tabs at once!!! SO much more functionality too. A must have as a tab hoarder with thousands of tabs, wish I had found this earlier!! I used to use Edge, but despite Firefox using all my RAM, I've found it to be the best at quitting with all my tabs open then restoring them all quickly and reliably. This extension makes me less likely than ever to want to leave Firefox.