by Guilherme Keerok In the last month, some friends and I have founded @duph0use, a house where we spent the last month doing bug bounties, researching, and working. At some point during the time I was there, I started searching for bugs in Mozilla, which led me to find 3 XSSes. In this post I will only be showing one of these findings. While I navigated through Mozilla products, I ended up finding chat. …