D
@lonm If the web panel is just treated like a tab hopping between windows, the "move tab" code could be embedded in the "open web panel" button so that even if it was already open somewhere else, it would close in the original window and reopen in the destination.
Like I mentioned before, there's plenty of OK extensions for common sites like twitter and soundcloud, but you just don't typically get the same maneuverability with an extension as you would with just loading an instance of the page (and you're limited to existing extensions for popular sites or making your own for each specific site you want to add functionality to). For example, with Soundcloud loaded in a web panel, I can pretty easily navigate to my own page to listen to my playlists, search a specific artist, or go back to listening through random stuff on my feed.
