Another simple idea that rocks! Rated 5 out of 5 stars
Sometimes the most basic ideas are the best ones. I found that it only slows down FF on computers that are old and slow anyways and still, the idea of being able to preview things first actually SAVES time and trouble and is well worth it! I put it in my "Apollo! Pack!" collection and I am recommending it!This review is for a previous version of the add-on (18.104.22.168).