Mistakenly I added one icon near Places in (Ubuntu) ver. 12 GNOME 3 (upper) panel. To remove it following instructions given in Ubuntu Answers
Maybe the great criticism recently arisen concerning GNOME 3, new taken wrong path of development had a good standbase. Even a simple task as even for a simple operation as removing icon from the panel is now complicated….
In short to remove the icon I had to hold Win+Alt keys and then click with right (last) mouse button over the icon and choose Remove.
Cheers 😉
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Tags: applications, gnome3, panel, remove