by Dr. Mike
Coprolalia will insert swearwords into the text of all web pages you visit. It's compatible with all versions of Firefox! It only works with English web pages.
Note: Coprolalia is also available for Chrome. Get it at https://goo.gl/IJy3hO
This add-on has been preliminarily reviewed by Mozilla. Learn more
This add-on is not compatible with your version of Firefox because of the following: