The new Performance panel is enabled in Nightly be default (bug 1668218, Fx86) and DevEdition (bug 1693314). It should also be enabled in Beta when it's ready. Honza
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The new Performance panel is enabled in Nightly be default (bug 1668218, Fx86) and DevEdition (bug 1693314, Fx 89). It should also be enabled in Beta when it's ready. Honza