The Impact Mozilla community marketing challenge comes to a close on Friday October 24th, so this is your last opportunity to submit a one or two page idea summary. The purpose of this challenge is to help improve Firefox user retention. We know that tens of millions of people have downloaded Firefox but don’t continue to use it today. How do we get these past users back? How to we keep future users active once they’ve downloaded Firefox? If you have an idea about how we could solve this problem, we urge you to write it up and submit it through the Impact Mozilla website on or before this coming Friday.