There is still a couple of places where we instanciate the fronts manually: * ActorRegistryFront: https://searchfox.org/mozilla-central/search?q=ActorRegistryFront&case=false&regexp=false&path=devtools This is only used by tests, but inspector tests actually depends on this still * AddonsFront: https://searchfox.org/mozilla-central/search?q=AddonsFr&case=false&regexp=false&path= This one is really only used by tests. about:debugging should be using it, but isn't. * PerfFront: https://searchfox.org/mozilla-central/source/devtools/client/performance-new/panel.js#34 The new performance panel uses a global actor because gecko profiler runs in the parent process. So that the perf panel isn't really specific to a tab but connect to an actor with a global vison over all Firefox. Nevertheless, we can refactor this callsite.

PerfFront is taken care of in https://bugzilla.mozilla.org/show_bug.cgi?id=1493680 and in https://bugzilla.mozilla.org/show_bug.cgi?id=1487428

Comment on attachment 9011823 [details] Bug 1485373 - Use client.mainRoot.getFront to fetch all global actors; r=ochameau Alexandre Poirot [:ochameau] has approved the revision.

Pushed by ystartsev@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/7a3062ce9107 Use client.mainRoot.getFront to fetch all global actors; r=ochameau