What steps will reproduce the problem? 1. In Firefox, go to Tools -> Pencil Sketching... 2. Minimize all collections in collections pane. 3. Right-click below collections (in collections pane) and go to Collections settings...

What is the expected output? What do you see instead? Menu item shouldn't be selectable when all collections are minimized. When Collections settings... is selected the following appears in the status bar at the bottom of the window:

SYSTEM ERROR! * thiz.currentCollection is undefined at: chrome://pencil/content/UI/CollectionPane.xbl:124

What version of the product are you using? On what operating system? Pencil 1.2, Firefox 3.6.3, Mac OSX 10.6.6