Echofon for Firefox is an extension that adds a tiny icon to the status bar. It notifies you when friends post tweets and has a text entry field for posting your own tweets. If you find a great site that you would like to share with your friends on Twitter, click the the link button to post a link to the current page in Firefox. Echofon for Firefox syncs unread tweets with your iPhone when you use Echofon Pro for iPhone. Echofon for Firefox features unread count in Firefox status bar, one-click access to Twitter popup window, post links to current page in Firefox, instant notification of new Tweets within Firefox, support for multiple Twitter accounts, handles all standard Twitter tasks such as direct messages and mentions, and syncs unread tweets with your iPhone when you use Echofon Pro for iPhone.