Permissions Administration Module
See the Fast Permissions Administration module; it is like the Module Filter module, but for permissions.


  This module is here to alleviate frustration when trying to manage permissions in Drupal. By providing a better permissions interface hopefully a few innocent keyboards and mice can be saved.


You can filter on the module name with @module, or permission@module:


  Module filtering:
  You can also filter on the module a permission belongs to using the @ symbol: permission@module.
  
  For example, if you want to show only permissions that contain the word admin for the comment module you would enter: admin@comment.