Rated 4 out of 5 stars

Excellent functionality, very helpful, superb for debugging and testing by Web Developers and QA.
Unfortunately some of the good functions become unintuitive compare with previous release: error console and debugger not longer easy accessible under button for enable/disable and under html tab edit function no longer works.
Overall impression: amazing application with reach functionality - please do not slow down with upcoming releases.

This review is for a previous version of the add-on (1.2.0b3).