If you want a super-quick way of sharing a URL on Twitter, you can't go wrong with the "Twitter Share This Page" extension.
Once installed, all you have to do -- when you are on the page you want to share -- is hit the blue "t" icon (which appears on the right-hand side of your browser bar) and the extension will load the relevant URL in your "What's happening?" Twitter box.
If you want the link shortened, right click on the "t" icon and select the shortening option. All shared links will be pre-shrunk using Bit.ly.
Khaled Musaied's "Twitter Extender" also offers tidy Bit.ly URL shortening abilities with an "add URL" option inserted just below the "What's happening" box.
There are a ton of other enhancements offered by the extension, including old-style retweeting abilities, "reply to all" functionality, quicker direct messaging and the option to load previous tweets if the tweet is a reply.
3. TwitterWatch - Real Time Twitter Update
This tool is very useful for anyone wanting a lightweight way to watch keywords and topics, especially if they are topical memes.
Installing it will place a little blue "t" button on the right-hand side of your browser bar, which, when clicked, lets you manage your keyword phrases.
Once you've set up the words you want watched, a tiny number will appear on the "t" letting you know how many mentions the word has racked up. Clicking it again will let you see the mentions in full.
You can make Twitter streams -- whether they are your homepage stream or a search stream -- refresh automatically. Tweets pour fluidly down the page, saving you from having to bother with the "X new tweets" clickable bar.
This is a fun one. Other than pure nosiness, the only real reason we could see for anyone needing this data is journalistic/research purposes. Usefulness aside, this extension will let you see the date that any user joined the micro-blogging service.
Ideal for the lazy Twitterer, Twitter Photo Zoom will super-size anyone's avatar from the home screen or sidebar lists when you run your cursor over the thumbnail.
Use this extension if you want to spice up your tweets with unusual symbols like stars, check marks and the like. If they're supported by the browsers and systems on the reader's end, they'll appear in your tweets normally, and you won't have to memorize any unusual codes or load up a character map outside the browser to make it happen.
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