Issue: the main browser window titlebar's appearance sometimes doesn't match up with the window's active/inactive state when using the desktop theme Vista Basic (not glass). Sometimes it's correct and sometimes it's not. When it's not, the window frame is showing one state while the titlebar is showing the opposite. This can give you two separate windows, both looking active. I can't tell right away whether this is a paint issue, a widget issue, a style system :-moz-window-inactive issue, or a winstripe theme issue, so picking one and starting with Core:Widget. Expected: - window titlebar looks active only when it is, and not otherwise Actual: - window titlebar sometimes looks correct, sometimes looks active when it's inactive, and sometimes looks inactive when it's active. - note: i've only seen this with Vista Basic, and not with glass Mozilla/5.0 (Windows NT 6.0; WOW64; rv:2.0b11pre) Gecko/20110202 Firefox/4.0b11pre