I took a look at the blueorganizer Firefox extension a while back, but the folks behind the nifty tool dropped me an E-mail and said I should give it a second look. I did, and I have to say I am pretty impressed with the progress.
With the blueorganizer Firefox extension, your browser becomes smarter. The blueorganizer helps you personalize your web interactions based on what you already like. It harnesses your experiences to help you discover relevant new information and save time.