Thank you to everyone who gave this a spin! It’s now available to everyone on desktop. Happy…

engineering : Now in Labs: Full-screen messaging on web Messages on web live in small popovers: both the list of messages, and the message window itself. That’s fine for a quick reply, but it gets cramped when you’re keeping up with a lot of conversations, so we built a full-screen version. Full-screen messaging gives your DMs more space: your conversation list on the left, the open conversation on the right.