Brandon A Cox has written a powerful post on Firefox add ons for folks who have not explored beyond Internet Explorer. I am convinced that you will consider taking the plunge once you read his insightful post.
You can read his insightful post on Firefox right here.
PS if you recall my earlier post on nakedĀ permalinks look at his permalinks. It clearly includes the date and title of the post. How cool! A great example to follow.