Fork me on GitHub

Callout by LacKac

a screenshot of Callout
Callout is a Firefox extension which delivers an API for web pages and Greasemonkey scripts to notify the user through the notification system of the OS. This would be Growl for Mac OS X users and Windows notifications for Windows users. The extension creates the callout JavaScript object which is usable by both unprivileged JavaScript code and Greasemonkey scripts.


Install the newest version from

README on GitHub.



Mozilla Public License Version 1.1 (or alternatively GPL 2.0 or LGPL 2.1)


László Bácsi


Feature requests and bug reports go to the GitHub Issues page.

Source Code Download

You can download this project in either zip or tar formats.

You can also clone the project with Git by running:

$ git clone git://