Rated 5 out of 5 stars

le Daggar ar Aib. 12, 2013 · buan-nasc

Makes the Drupal Permissions screen approximately 1 bazillion times easier to handle.

Works with Firefox version 20 no problem.

The only trick is that the normal behavior - hover over a checkbox to create a bounding box, is not immediately apparent. You might feature that more prominently in the description.