I'm back with some more updates on another week worth of work on improving various performance aspects of Firefox.

Similar to the past weeks, Speedometer remains a big focus area for performance work. In addition to the many already identified bugs to work on, we are also still measuring the benchmark quite actively looking for more optimization opportunities.

Another item worthy of an update is Background Hang Reports. Nika Layzell earlier today enabled collection of native stack traces on Win64 (and Mac) using the Gecko Profiler stack walking backend (Linux support soon to follow). Because we are now using the Gecko Profiler backend for BHR, we can soon get interleaved native and pseudo-stacks from BHR similar to the ones that we have come to know and love in Gecko Profiler for a long time now! Also, Doug Thayer has made a lot of progress on hangs.html, his front-end for exploring the native stack traces uploaded from BHR. This is a nice and super fast tool to explore the hangs that our users are experiencing on the Nightly channel and it shows you the corresponding pseudo-stacks that are extremely helpful if for example the hang is coming from chrome-privileged JS (where we get full call stack information through telemetry). Please have a look, and send him feedback.

This edition is exceptionally short, but the most interesting part of these is probably the last part anyway, the credits section, where I acknowledge the hard work of the people who worked on improving the performance of Firefox in the past week. So let's get to that, and I do hope I'm not dropping any names: