Can't capture wide pages requiring a horizontal scroll Rated 3 out of 5 stars

I can't capture wide pages, i.e. pages that do not fit horizontally on my monitor, and require a horizontal scroll to see the entire contents of the page. Any thoughts? Will change the rating once I know how this works (or doesn't!)

This review is for a previous version of the add-on (1.0.3). 

Could you leave an example URL? Thanks.