Hey, since no one else has mentioned this, I wanted to help out some of the people who are missing their taboos since updating to FF4. I stupidly hit update as soon as I saw the shiny FF4 download button and didn't think twice. Until I realized that my most beloved add-on, Taboo, had not been updated for FF4. And after pondering the fact that FF4 has a shiny new tab saving interface of it's own, I also wondered if the makers of Taboo would even bother to update. If they do, more power to them, but considering so many other extensions have already updated, the fact that they did not seems suspect, no?
The good news is your Taboos are all still there, FF4 simply can't access them because the extension is incompatible. To that end, what I did was re-install FF 3.6. Finding a link was NOT easy, nothing seems to be available on the Mozilla pages at this time. So you'll need to google or if you need a copy, I can send you one. I re-installed FF3.6, and Taboo was functional again. Then I went into the Taboo preferences and chose to export all my saved tabs (a ridiculous 3 digit number no less) as an html file which I saved to my desktop. I then re-installed FF4 and clicked on my saved Taboo html file which launched in a browser window of course. I have that file, which lists all the links of my old taboos, pinned to my FF4 browser (one of the new FF4 tab features) and am slowly reorganizing my tabs. Let's face it, some of those tabs we have are old, irrelevant, etc. So I'm organizing them and the ones that I want for quick reference will live in the new sexy FF4 tab organizer. The others which I need to keep but want organized in a different way because I need a more visual presentation of them are going into my "zoo". In case you're wondering, that would be my zoo at zootool.com which is quite possibly the greatest, sexiest bookmarking/sharing interface I have ever used. It's like Del.icio.us and Taboo got together and had this awesome german baby that organizes all my thoughts and inspirations. If only the rest of my life were this cool!
Anyhow, you don't have to use both options, but the saving your taboos as an html file to transfer into your new FF4 browser is an easy one if you want to take advantage of the awesomeness of FF4 and can't wait for the Taboo update. To the Taboo creators; I understand if you decide not to update, but thank you for your innovative extension. It raised the bar for useful extensions and really heightened my organizational skills. Job well done, I look forward to seeing what else you come up with ;)