I was also there for the memory usage side of things. B2G management was driven by a mix of "the web is the platform" ideology[0] and a willingness to promise

I was also there for the memory usage side of things. B2G management was driven by a mix of "the web is the platform" ideology[0] and a willingness to promise whatever carriers and OEMs wanted to close a distribution deal regardless of whether it was feasible or made any sense. My own personal "this project is hopelessly doomed" moment was roughly 48 hours before the 1.4 code freeze when I was contacted by a colleague asking how feature X was coming along. Feature X was needed to fix Bug Y, and Bug Y was in the critical bug list for the code freeze. But it turned out the B2G project managers had decided to manually track their critical bug list outside of Bugzilla, and didn't make any effort to track the transitive dependencies of those bugs, or notify anyone that they should be working on these. "ngmi" hadn't been popularized yet but that was very much my feeling at that moment. Active development ceased by the end of the year. [0] which I think could have panned out at least technically, given sufficient resources, time, etc