Updates to Warm Page Load Tests
Background We have recently begun the process of updating our warm page load tests to be more representative of real user behavior. Cold page load is defined as the first … Read more
Articles from November, 2021
Performance Sheriff Newsletter (October 2021)
In October there were 303 alerts generated, resulting in 45 regression bugs being filed on average 5.2 days after the regressing change landed. Welcome to the October 2021 edition of … Read more
Upgrading Page Load Tests to Mitmproxy 7
Background mitmproxy is a third-party tool that we use to record and play back page loads in Firefox to detect performance regressions. The page load is “recorded” to a file: … Read more
Performance Tools Newsletter (Q3 2021)
As the Perf-Tools team, we are responsible for the Firefox Profiler. This newsletter gives an overview of the new features and improvements we’ve done in Q3 2021. This is our … Read more