1936632 - Use Nimbus Variable to enable (but not disable) Profiles

Status: RESOLVED FIXED

(Toolkit :: Startup and Profile System, enhancement, P2)

Description

[Jared Hirsch [:jhirsch] (he/him) (Needinfo please)]

If Nimbus enables the feature by turning on the feature pref, then if Nimbus is disabled, or if the rollout ends, then users will be unenrolled from the Nimbus rollout, which means the pref will be reset to false, and users will lose their multiple profiles.

Instead, we want to use a Nimbus Variable to signal that the profiles feature should be enabled via pref flip, but if the Nimbus Variable ever is reset to false, we don't want to unset the pref. As sketched by brennie in Slack, we might do something like:

NimbusFeatures.multiprofile.onUpdate(() =>{
if (NimbusFeatures.multiprofile.getVariable("enable")) Services.prefs.setBoolPref("the.actual.pref" , true); })

We will need to coordinate with :emcminn on the name of the Nimbus Variable.

Comment 1

[Emily Wachowiak [:emilyw]]

Oops I thought I was tagged in this request >_< silly me. Please disregard this comment!

Comment 2

[Cieara Meador [:cmkm]]

Attachment: Bug 1936632 - Enable Profiles pref if enrolled in experiment r?#profiles-reviewers,emcminn

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d0efb392c178
Enable Profiles pref if enrolled in experiment r=emcminn,profiles-reviewers,mossop,jhirsch

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/d0efb392c178