Changes

In addition to the tests we actively look at above, there are other tests that run in mozilla-central on fenix or GeckoView example. '''We're not sure who looks at these.''' The perftest team is working to dynamically generate the list of tests that run on the fenix application. Some progress can be seen in [https://sql.telemetry.mozilla.org/queries/77734/source this query] and [https://treeherder.mozilla.org/perfherder/tests this treeherder page]. Until then, we manually list the tests below.

* Page Additional page load durationtests: see the query above for a list of sites (sometimes run in automation, sometimes run manually; todo: details)

* Start up duration (see [[#Terminology|Terminology]] for start up type definitions)** COLD VIEW tests on via mach perftest. Runs per master merge to fenix on unreleased Nightly builds so we can identify the commit that caused a regression** COLD MAIN & VIEW tests on FNPRMS. Runs Nightly on production Nightly builds. This is being transitioned out in favor of mach perftest.

There are other tests that run on desktop that will cover other parts of the platform. We also have other methodologies to check for excessive resource use including lint rules and UI tests that measure things such as  Notable gaps in our test coverage includes:* Duration testing for front-end UI flows such as the search experience* Testing on non-Nightly builds (does this apply outside of start up?)