As the title says, I want to use picture in picture mode but allow other windows to appear on top. I think this used to be a toggle option, but now I don’t see it.
I’ve had a hunt in about:config, but nothing I can see will set it.
No.
What purpose would this serve? Why would you want that?
I want to run videos on a second screen, but occasionally I need to check on a document or webpage so I’d like to quickly ALT+TAB to bring up the browser window and have it sit on top of the video screen, then I can minimize the browser once I’m done and the video is still there playing. (I’m doing this right now in reply to your message).
Think of it as an animated/audio desktop background.
I’ve found a workaround for now using Enhancer for Youtube’s pop-out player.