Rated 4 out of 5 stars

@grbradt:

Click on the link in the error console. Then you see the path in die title bar of the source code. Open the file an remove the whitespace between "getJarFilesAndChrome" and "Dirs" (@line: 450).

Restart Firefox and try it again ;)

This review is for a previous version of the add-on (0.3.0.20100621).