I am trying to build a firefox extension which listens to events when a cookie is changed by any domain from any page and handle it accordingly. Is there an easy way to do this in javascript?

I am trying to build a firefox extension which listens to events when a cookie is changed by any domain from any page and handle it accordingly. Is there an easy way to do this in javascript?

• javascript
• firefox
• cookies

• Have a look at the code of the FireCookie extension: code.google./p/firecookie/source/browse/trunk – Benjamin Wohlwend Commented Nov 9, 2010 at 10:26

2 Answers 2

You can listen to the cookie-changed topic with the observer service.

http://jsfiddle/ArondeParon/5RsTm/4/

try changing the cookie, it will pop up an alert.