Recently I have found a brand new Firefox Extension, to shout in Twitter. TwitterFox is a Firefox browser extension that allows you to post twitter notifications from right within your browser. If you spend most of your time in Firefox this extension would be best extension to Tweet in Twitter. It not only enables you to post twitter notifications but it also checks your Twitter account for your friend’s tweets and updates. This extension adds a tiny icon on the status bar that notifies you when your friends update their tweets. Also it has a small text input field to update your tweets.

New feature of Version 1.6.1:-

• Fixed conflict with Organize Status Bar extension.
• Remove cookie preference. Twitter no longer supports same cookie of browser and API client.
• Enabled spell checker spell candidate menu.
• Added cs-CZ locale

Install | TwitterFox