It's works fine here using the right arrow on Firefox Nightly 40.0a1 running on Ubuntu 15.04.

Ha, it didn't occur to me to use the keyboard.

What I find incredible is that the same exchange takes place on HN every single time a web slideshow is posted...

Isn't trying the arrow keys / keyboard navigation an instictive thing to do?

> Isn't trying the arrow keys / keyboard navigation an instictive thing to do?

Evidently not. My position is that a web page that is impossible to navigate via mouse is broken.

Horizontal mouse scrolling is also broken on Chrome, doesn't load more than 3 slides.