One of the most important new features in Firefox 2.0 is the integrated spell checker. While it is true that many forums and blogs offer a spell-checking function, still there are many that do not, so now with Firefox 2.0 you can always see your spelling mistakes before you post the message or submit the post. If you are an active blogger or forum poster, you will certainly appreciate this cute new feature. But if real-time spell check is not something that you like, you can always disable it in the General tab of the Options dialog box.