For what it's worth, I've been part of a Mozilla/Facebook partnership (on the Mozilla side) on data compression. Having two tech companies work together (especi

For what it's worth, I've been part of a Mozilla/Facebook partnership (on the Mozilla side) on data compression. Having two tech companies work together (especially when one of them is non-profit) often makes sense. For this case? I'm sure that there is a good reason. I'm not a Mozilla anymore, so I haven't followed that story, but I imagine that the rationale is something along the lines of "These days, stuff we do in the browser don't have much impact, as web standards have been superseded by Chrome. However, whenever we manage to convince a big company such as Facebook to do even one thing better, we can improve the lives of billions of people." PR impact might not be good, though.