They frame it as '64 bit users with more than 4GB RAM' so a lot of those are OOM related. More discussion @ https://groups.google.com/forum/#!topic/mozilla.dev.

They frame it as '64 bit users with more than 4GB RAM' so a lot of those are OOM related. More discussion @ https://groups.google.com/forum/#!topic/mozilla.dev.platform/hlCGG_Hib1w https://groups.google.com/forum/#!topic/mozilla.dev.platform...