Qupzilla seems to be more stable here, but also keepassx auto type doesn't work.
Chromium-bin (aur) is more stable and faster than with qt4. So it's useable again.
Because of the combination of chromium/ hangout and keepassx I switched back from qupzilla, which also is a good and lightning fast browser.
Nice look and feel. Much better than qt4 build.
Removeable media and volume control in the panel

Mouse acceleration and dual screen settings can't be saved, but should be possible to set it directly to the config files.
Great work!!!