Agrees on 'Must-have'! Rated 5 out of 5 stars

Real-time editing is the greatest feature. I don't have to test-save-upload-test-save-upload because I can edit the file in the browser and when I am done I'll just fix the source. A lot faster and more efficient! I can also manipulate other sites (not directly, duh) and learn more. Must have!

This review is for a previous version of the add-on (1.04).