Some Issues Rated 3 out of 5 stars

-Search function doesn't work properly. When you search for a word or text, firefox highlights the word, but you can't see the text. Instead of highlighting with green, it paints over the word with green.
-Some pdf's don't search at all. I tried those same pdf's with Chrome and they worked just fine.
-It would be really nice to see a search count feature added. If not for regular browsing, at least have the feature for pdf's like how Adobe and Chrome have.

As a general note, I would really like to see Mozilla add the ability to change highlight colors. I have colorblindness to red and certain shades of pink, so using the Ctrl+A feature hurts my eyes. I wouldn't have to use that feature though if a search count feature was added.

This review is for a previous version of the add-on (0.2.537).