Love this Add-on. Been using it for ages. I thought once Quantum hit that it would lose all its usefulness and functionality, but the dev has done a good job of tackling whatever issues there were because it seems to work pretty great now. My only concern was the ability to suspend specific tabs as opposed to all tabs, but thankfully the dev has addressed this as well and it's as simple as right-clicking on the tab in ATH and then hitting Suspend Tab, super simple. So all is well and I couldn't be happier! Thanks!