Way too slow Rated 4 out of 5 stars
I know it's early in PDF Viewer's life so I hope you are able to speed up page rendering. For now I must stick with Foxit.This review is for a previous version of the add-on (0.2.537.1-signed.1-signed).
Good first start Rated 3 out of 5 stars
As can be expected pdf.js still has a ways to go. While it seems to handle basic pdf documents OK, more complex ones are not. So don't get rid of your current pdf reader just yet.
I am looking forward to see how this project turns out when complete.