Very Good. Rated 5 out of 5 stars

Incredibly useful for bookmarking your place, when reading very long html e-books and the bookmarked place persists across browser sessions.

I would like to see a different type of marking to the rainbow effect used, but knowing just how much work goes into making extensions, I am just grateful that this extension exists at all!

Very good.

This review is for a previous version of the add-on (1.1.0).