Rated 3 out of 5 stars

Surely nice for developers. The only thing I do hate about it is that I can only set all the debug preferences on or off. I don't actually need "disable_xul_cache" but if I change it to false it will be reset to true after restart. I have to edit extensiondevOverlay.js manually every time I reinstall it :-(

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