For many of you working with a Content Editor Web Part and FireFox is a real nuisance, since Fire Fox does not render the neat little Rich Text Editor that shows. This is also true for adding to a list with SharePoint and FF. Now there is a neat little add-on that you can install called WriteArea. With this add-on, when your area is open in FF and you are missing the nice editor or you see all of the html in your text box, simple right click and select Edit with WriteArea.
With WriteArea open you now have all the items you were missing and a few more.
If you start using it, let me know what you think, or better yet, let the creator know what you think.