Newbie here - I discovered DF today and am getting hooked already. I've noticed that DF's titlebar-button is not shown when FF is active. The forum shows a few posts mentioning FF & DF, so it seems to have been possible - so is it no more possible or have I missed any setting to enable it?

A couple of ways to move FF to the next screen is:
a) middle click on the three icons top right ( minimise - window - close) to move to the next monitor.
b) press the Winkey + Shift + either the Left or Right arrow key depending which way you want to go with FF (if you have three or more screens that is).

Ok, thanks - that helped. Meamwhile I also found that enabling the window caption in FF will also do it - so my question is fully answered now!