Hello!
In Internet Explorer all works graet, but in FireFox "Create a new message" webmail check's for new messages:mad:
So "Create a new message" don't display new message window!!!
Its working find for me, what OS are you running, what Firefox version are you using, and are they any error in RoundCube's logs?
Am , I found where is the problem. Yes on FF works well. So the problem is first button, on FF button "check for new messages" is too large, this button covered up "create new message button". I'm just move mouse more right.
This could be very well if developer made button toolbar with more spaces between buttons.
I'm using latest version of FF and roundcube with default installation.