Shoutbox

I don't think this is necessary as much as you think. Also if Patchou will not do that, then even if TB does it, one can enable first the StuffPlug's tabs, after that enable MsgPlus!'s tabs so the same problem will occur.

Also someone who uses chat windows maximized may want to use both at the same time (as I said, using window maximized will prevent the problem).

So in my opinion just leave users with their own decisions on this.