Awesome WM: titlebar for floating apps?

Question

Is there any way to add a titlebar just for floating apps?

Answer 1

Thanks Barghest. The last e-mail from this link helps a lot, though it only works with apps that are in "floatapps" (in the beginning of the file). I've made some changes, so it works with any app that is floating, it doesn't matter if the app is in "floatapps" or not.
Add this to the end of the file:
awful.hooks.property.register(function (c, prop)
-- Remove the titlebar if fullscreen
if c.fullscreen then
awful.titlebar.remove(c)
elseif not c.fullscreen then
-- Add title bar for floating apps
if c.titlebar == nil and awful.client.floating.get(c) then
awful.titlebar.add(c, { modkey = modkey })
-- Remove title bar, if it's not floating
elseif c.titlebar and not awful.client.floating.get(c) then
awful.titlebar.remove(c)
end
end
end)
It's not perfect, though. I don't know why, Firefox is always floating, so there's always a titlebar in it. I've tried using 'and c.class ~= 'Firefox'", but then everything stopped working.