With version 40 of the Firefox Developer Edition browser, Mozilla is adding performance tools to give developers a better understanding of what’s happening in apps from a performance standpoint.

The new upgrades profile the performance of websites, apps, or games. “All performance tools can now be found grouped together under the Performance tab, for easier usage,” said said Dave Camp, director of developer tools at Mozilla, and Jason Weathersby, Mozilla technical evangelist, in a blog post on Tuesday. “Performance is all about timing, so you can view browser events in the context of a timeline, which in turn can be extended to include a number of detailed views based on the metrics you choose to monitor.”

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