Running keepass 2.18, which is Mono-based, on Xubuntu 12.04, I can't seem to copy-paste usernames or passwords from keepass2 to Midori.
I can copy from keepass2 then paste into other applications such as Firefox, leafpad, xterm. And paste to Midori from other apps than keepass2.
I think the problem does not occur with Midori only, but with other programs relying on WebKitGTK.
Do you have ideas ?