Comment 3 for bug 206191

Yes it should be needed because it fixes another issue. It is not about crashing but rather how the Set Desktop Background is able to read the background color from Gconf. Here's some steps how I can reproduce the issue:
1) Open gnome-appearance-properties and set the Desktop background to a red Solid color for instance
2) Launch Fx2 or Fx3, right click on an image and choose "Set As Desktop Background"
3) Select "Center" so that you can see the color around the image in the small screen image.
4) Expected: should be red / Actual: grey color.

Now try to manually set the gconf key /desktop/gnome/background/primary_color to "#f00" and do the above steps again.

I just typed this, and now that I'm trying the second step on Fx3, I'm always getting a black background color on the monitor icon (even if I have #f00 in gconf) without an error in the console :-/. Might be yet another bug hiding there.