Do NOT use - FULL of Bugs Rated 1 out of 5 stars

Do NOT use this. It does NOT work. I've wasted two days on this horrible add-on. It is so full of bugs I don't know where to start. I have finally given up after it repeatedly crashes and corrupts my document to the point where I can no longer open my saved files. My work is lost and the project is ruined. I am running Pencil 2.0 on Firefox 3.6.8 on a Mac and it is a complete waste of time.