Simple and effective - great for highlighting one or more 'keywords' in web-page text across multiple pages and websites. Just enter a list of comma-separated words in the add-on dialog, and they are automatically highlighted on every page you visit.

It would useful if one could toggle this feature on/off - instead of having to clear the search words.

I also agree with others that it would be good if there was a way to 'jump' to the found words.