Extremely useful Rated 4 out of 5 stars

This is a very helpful AddOn -- basically marks up your stylesheet with colors to identify which elements, classes, and IDs are used, and numbers to indicate how many times they appear.

You can also then export this "cleaned" stylesheet, with all the unused styles marked as such -- it doesn't remove them but adds "UNUSED" at the beginning of each style declaration so you can test if they can be safely removed.

One feature I would love is the ability to search for a specific class or ID (similar to "Firefinder," which no longer works).

This review is for a previous version of the add-on (0.2.6.1-signed.1-signed).