It's excellent, very updated!

Very impressed with this add-on. Has a very high accuracy rate.
Didn't seem to work at first as I couldn't see the icon.
I had to restart Firefox with add-ons disabled and then restart again with add-ons enabled. This can easily be done from the Help sub-menu.

This is a wonderfull tool and it's has a high accurancy detection that's why I love it.
In firefox it's located in a very nice location when you install the addon right next to the url bar
I love this.

In fact I did intergrate it online here
https://www.nmmapper.com/st/cms-detection/wappalyzer-online/

Really useful for me as a web designer / tech-support / generalist fixer thanks. Great to get an idea of how different tools are used, without having to 'view source'.