Front-end performance heatmap bookmarklet

This only shows images (for me). Chrome dev tools have a much more detailed profiling built in. Though it can be a bit overwhelming at first.

You can see more of my performance data visualizations (like PerfMap) in a recent talk I gave at Velocity NY. <a href="http://speedcurve.com/blog/velocity-a-better-waterfall-chart/" rel="nofollow">http:&#x2F;&#x2F;speedcurve.com&#x2F;blog&#x2F;velocity-a-better-waterfall-chart...</a>

Why no Firefox support?

Seems to be only about HTML-based browser hosted front ends.