1669703 - The “fission.experiment.startupEnrollmentStatus” pref retains its experiment value after changing “fission.autostart”

Status: RESOLVED DUPLICATE of bug 1669536

(Core :: DOM: Navigation, defect)

Description

[Maria Heres, inactive, contact Ecosystem QA]

[Affected versions]:

• Firefox Nightly 83.0a1 (Build ID: 20201006161706)

[Affected Platforms]:

• Windows 10 x64
• Windows 7
• macOS 10.15

[Prerequisites]:

• Have the latest Firefox Nightly browser installed.
• Be enrolled in the “fission-disabled” branch.
• The browser has NOT been restarted after enrollment - Fission is still disabled.

[Steps to reproduce]:

1. Navigate to “about:config” and modify fission.autostart to true.
2. Restart the browser.
3. Navigate to “about:config” again and observe the preferences.

[Expected result]:

• Preferences are:
  • fission.experiment.enrollmentStatus set to 3.
  • fission.experiment.startupEnrollmentStatusset to 3.
  • fission.autostart set to true.

[Actual result]:

• Preferences are:
  • fission.experiment.enrollmentStatus set to 3.
  • fission.experiment.startupEnrollmentStatusset to 1.
  • fission.autostart set to true.

[Notes]:

• If preferences are observed between steps 1 and 2, the results are:
  • fission.experiment.enrollmentStatus set to 1.
  • fission.experiment.startupEnrollmentStatusset to 1.
  • fission.autostart set to true.
• This pattern of preference behavior is also reproducible for the "fission-enabled" branch.
• Attached are a recording for the treatment branch and for the control branch.

Comment 1

[Neha Kochar [:neha]]

I believe this is getting fixed in 1669536