InterClue vs. CoolPreviews Rated 4 out of 5 stars

CoolPreviews is my preference. It offers a temporary bookmark stack and is easier to use and configure (because it has fewer features perhaps; InterClue's features aren't that useful for my purposes).
Both are good and both are MISSING A TEXT SEARCH FUNCTION WITHIN THE PREVIEW WINDOW!

This review is for a previous version of the add-on (3.5).