xwininfo: Window id: 0x360007f (has no name)

  Root window id: 0x58 (the root window) (has no name)
  Parent window id: 0x360007e "Bug 13295 - Screensaver locks screen while keeping the windows on the foreground - Mozilla Firefox"
     0 children.

  Absolute upper-left X:  3
  Absolute upper-left Y:  57
  Relative upper-left X:  -1
  Relative upper-left Y:  -1
  Width: 1
  Height: 1
  Depth: 24
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +3+57  -1276+57  -1276-742  +3-742
  -geometry 1x1+3+57

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      KeyPress
      KeyRelease
      SubstructureNotify
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined