Buzz it is a Mozilla Firefox browser addon , which will make a buzz status update via Gmail with the link and title of the web page you are currently viewing. You can download and install this Firefox plugin here.
Presently there are two extensions available for Google browser Chrome and both have totally different functions. Also, both of these extensions named Buzzer require the user to setup Google Reader to make it work, and eventually connect the Reader to Google Buzz.
With Chrome Buzz , you can read your Google buzz alert and updates without having to open a new tab on your browser. Unfortunately, though, you can’t post or comment on anything.