I leave my Paint tab open pretty much 24/7, but whenever I get logged out, the notification and friends online tabs go blank and I have to reload the page and log back in.
It would be nice to have some little message, maybe in the notifications tab, when our login sessions have timed out. That way, there won't be any confusion as to why the notifications/friends tabs are blank.
I forget why this would happen, but I think I can patch out possible connection errors with this as well.
So, the plan: whenever the page tries to check on your friends or notifications and gets responded with a bad response (i.e. error), put a message in that section that says "hey, you're dead. try refreshing or something idk"