Endor wrote:It opens only a empty Window with the line Please wait...
This thread has a fix for "Extension List Dumper" that also works with InfoLister.
Regarding InfoLister it's just one file that has to be edited:
\extensions\{3f0da09b-c1ab-40c5-8d7f-53f475ac3fe8}\resources\3f0da09b-c1ab-40c5-8d7f-53f475ac3fe8-infolister-lib\addonsProvider.js
Look for "resource://gre/modules/XPIProvider.jsm" and change it to "resource://gre/modules/addons/XPIProvider.jsm"