Rated 5 out of 5 stars
This is the best URL Shortener - especially for BIT.ly Links!
To get it linked with your bit.ly Account you just need an API Key - can be found at: http://bit.ly/account/your_api_key
-> So you can allways overview all your generated links with the traffic they made!
Don't need the context menu function because there are 2 Icons to shorten the link (adress bar, status bar)