Nice, features needed... Rated 4 out of 5 stars

Nice idea.
Would've got 10 but:
1. It's currently a bit broken
2. It would've been nice if it could display up and down votes in the status bar itself, or even submit from there (configurable, of course). The bar is nice, but it hides a portion (although small) of the screen, while the status bar is mainly empty (at least in my browser)

This review is for a previous version of the add-on (0.9.1).