Bug 949217 - [Australis] Collect UITelemetry on how many extra toolbars there are. r=Gijs.
Bug 951854 - Add developer tools button to panel placements in BrowserUITelemetry. r=jaws.
Backed out changeset 9adfbbc3549c (Bug 951854) for missing Australis commit message.
Bug 951854 - [Australis] Add developer tools button to panel placements in BrowserUITelemetry. r=jaws. DONTBUILD
Bug 956826 - Check docShell's private browsing state when the frame script is loaded