There's a couple of things that are currently only exposed via that window, yes. Changing your avatar and username are only exposed globally via that window. Account order is only exposed in that window (we should really just use the order from the TB account manager). And as Patrick mentioned, account connection management (sign on at startup checkbox, connection status, errors, reconnect, reconnect errors, startup reconnect delays etc.) is currently only exposed in that window.
Bug 1731225 Comment 3 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
There's a couple of things that are currently only exposed via that window, yes. Changing your avatar and username are only exposed globally via that window. Account order is only exposed in that window (we should really just use the order from the TB account manager). And as Patrick mentioned, account connection management (sign on at startup checkbox, connection status, errors, reconnect, reconnect errors, startup reconnect delays etc.) is currently only exposed in that window. Lastly, there's the Copy Debug Logs feature that as far as I know is only available via the context menu in that window.