We want to understand where Firefox downloads come from. So far, we know that 30% of Firefox installs come from the official Mozilla website or from known partners. The other 70% come from mystery download sources that we call “the dark funnel”. Some are friendly sites, but others put users at risk of getting old editions, a bad experience or even malicious installs. Help Firefox understand what’s in the dark funnel, by participating in this campaign and spreading the light!