Rated 3 out of 5 stars

This was very nearly the answer to my prayers. Unfortunately, it squashes some of my favorite games in a way I don't like. For instance, on the add-on homepage you've got cursed treasure filling the screen, but when I gave it a shot it squashed to about 2/3 what I'm used to. Get it to zoom to the closest edge without warping, and it would be an absolute winner! I'm also not sure if Kongregate.com badges and achievements will activate while playing fullscreen. For the games that work, I'll use this every time!

This user has a previous review of this add-on.

Details

SwiffOut switches the resolution to the closest of the game, it seems that your monitor or video card do not support a resolution that closely match this game. I try to not resize games as it sometimes causes scaling issues. I'll try to add an option when I'll have time.
Thanks for useful feedback.