Saying that Firefox "need[s] to be where [its] users are," it appears that Mozilla is going to produce a version of Firefox for iOS.
Mozilla is having a large, week-long working and meeting event in Portland, and TechCrunch spotted a couple of tweets coming from Mozilla employees talking about bringing Firefox to iOS. Mozilla Release Manager Lukas Blakk tweeted that Mozilla was going to get Firefox on iOS because that's where its users are. Manager of Data Science Matthew Ruttley tweeted, "Firefox for iOS!! Let's do this!!!" (exclamation points all his), and he accompanied the tweet with a photo of a presentation that included a picture of an iPhone.