Not sure if this is a temporary problem and if it would be "fixed" if I reboot the machine, but currently I have the following 100% replicable problem:
Typing a part of the recipient's name/address in any address field, I'm seeing a number of possible selections. But I can't select any of them with the mouse.
Oddly, I can mark parts of the offered selections with the mouse instead, see attached.
Selecting a recipient with the keyboard does still work, but only if I didn't click on any of the offered selections before. If I did that, even the keyboard selection doesn't work anymore.
Win7/64, FF 27.0.1, RC 1.1-git [GIT 20140605.2017].
Michael Heydekamp Co-Admin freexp.de Düsseldorf/Germany