Bug 1604653 R[Core:Audio/Video: Playback]Add `setPlaybackState()` API on MediaControlKeysEventSource
Bug 1606074 R[Core:JavaScript Engine]Simplify BytecodeAnalysis and BytecodeParser a bit
Bug 1606463 R[Core:JavaScript Engine]Re-enable test gc/bug-1215678.js
Bug 1605742 R[Firefox Build System:Generated Documentation]Instructions on how to build and contribute to Firefox should move here from MDN
Bug 1606541 R[Firefox Build System:Lint and Formatting]Add "error:" in case of error to facilitate the search and be more consistent
Bug 1602863 N[Firefox Build System:Task Configuration]ubuntu1804 - migrate tasks, tests and other jobs that use desktop1604-test to use ubuntu1804-test image
Bug 1606290 R[Remote Protocol:Agent]Enable or disable some more Puppeteer tests for Firefox so that we run all the tests
Bug 1606317 A[Remote Protocol:Security]ignorehttpserrors.spec.js:30:5 - FAILED while running "beforeEach" in suite "Firefox ignoreHTTPSErrors"
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Changes to 8 bugs - 5 fixed.