Works fine on FF 3.6.13 Rated 5 out of 5 stars

Works fine, could (should?) be a default implementation, like with Opera (Chrome neither has this option nor has it an ad hoc extension: kings don't share!). Nowadays many users have more than one browser and having the option to switch page display from one to another is both open-minded and thus productive. Thanks for this extension.

This review is for a previous version of the add-on (2.06).