Instantbird 1.1 Portable

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Features
Instantbird is designed to make instant messaging better:
Talk to all your friends - With Instantbird, you can now talk to all your friends with a single application. AIM, Yahoo, MSN, Google Talk, Facebook and even Twitter are supported.
Trouble free - Instantbird has been designed with stability and simplicity in mind. You will enjoy its clean clutter-free user interface: nothing will distract you from your conversations. No ads, you won't be annoyed by unwanted content.
Conversations in Tabs - Conversations are grouped in Tabs, ensuring you never feel swamped by conversations windows poping up everywhere. The tabs are easy to use: you can drag them to reorder them, or move a conversation into a new window.
Customizable conversations - With a few carefully designed message themes available by default and hundreds more available as add-ons, there's all you need to make your conversations feel personal. Let's turn them into a colorful, delightful experience!
Smart contacts - Having several ways to contact the same person? No problem, just drop a contact onto another and Instantbird will know it's the same person.
Always here for you - In addition to the portable Windows version, standard Instantbird can work on all your computers, whether they are running Windows, Mac OS X or Linux. Being free and Open-Source, you will never have to pay to use it. You will never have to learn to use another IM client again.
Limitless extensibility - Powerful tools like inline search or zoom are built-in to help you get the most out of your conversations. More are available as add-ons, thanks to Instantbird's limitless extensibility.