I'm the creator of the Repibox recipe extension and it looks like it's working on Firefox mobile without me having to do anything. Pretty cool! Shameless plug,

I'm the creator of the Repibox recipe extension and it looks like it's working on Firefox mobile without me having to do anything. Pretty cool! Shameless plug, Repibox is a recipe extension that immediately pulls the recipe into a modal on top of the page. You can add it to Firefox by going to Repibox.com