When I have YT playing in a window, that isn't currently open, it will show YT playing in the lower left corner. Like in the image.

I tried looking in the settings, but couldn't find anything that sounded like a setting that would disable this.

I am using Zen 1.23.4b and my only extensions are uBlock Origin, Privacy Badger and I still don't care about cookies.

This might be a stupid question and is easily fix able but idk how to turn it off or even let you turn it off

Getting used to Zen and have managed to get most of my stuff in sync between my laptop and desktop. However, I spent a few hours this weekend getting all of my arc ATC rules ported over as tab routing in Zen... only to find that none of them synchronized over to my laptop. Is there an extension/sine mod/zen mod that does this? Or am I going to have to manually manage this on both platforms?

Is there any chance to add WebUSB support to Zen? It's very helpful to install firmwares for some devices from browser, but Firefox has some limitations for this feature.