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URL: https://phabricator.services.mozilla.com/D283340

⇱ ⚙ D283340 Bug 2015935 - Adding Adaptive Performance Prefs to Nimbus Manifest

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Bug 2015935 - Adding Adaptive Performance Prefs to Nimbus Manifest
AbandonedPublic

Authored by diannaS on Feb 13 2026, 6:26 PM.
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Details

Reviewers
dmeehan
tthorne
Group Reviewers
release-managers
Bugzilla Bug ID
2015935
Uplift Request form
  • User impact if declined Uplifting this to 148 allows us to get experiment signal on release in time for Q1 delivery of Adaptive Performance Tuning.

This particular set of pref inclusions allows us to implement a less eager delazification strategy – delivering significant CPU efficiencies to users.

  • Code covered by automated testing yes
  • Fix verified in Nightly yes
  • Needs manual QE test no
  • Steps to reproduce for manual QE testing
  • Risk associated with taking this patch low
  • Explanation of risk level These are pref-only additions to existing features of the Nimbus manifest, with no implicit impact until carefully designed experiments are approved and launched.
  • String changes made/needed N/A
  • Is Android affected? no
Summary

Diff Detail

Repository
rFIREFOXBETA firefox-beta
Branch
HEAD

Event Timeline

phab-bot added a reviewer: release-managers.
phab-bot changed the visibility from "Custom Policy" to "Public (No Login Required)".
phab-bot changed the edit policy from "Custom Policy" to "Restricted Project (Project)".
phab-bot removed a project: secure-revision.
dmeehan requested changes to this revision.Feb 16 2026, 9:43 AM
dmeehan added a subscriber: dmeehan.
Comment Actions

Rejecting beta uplift request, the patch was backed out on autoland.
The beta cycle is over for Fx148. We could take an uplift request targeting release. We could include it in a later dot release.

This revision now requires changes to proceed.Feb 16 2026, 9:43 AM
diannaS abandoned this revision.
diannaS added a reviewer: tthorne.

Revision Contents

PathSize
toolkit/
components/
nimbus/
24 lines
CommitTreeParentsAuthorSummaryDate
e1799d800458fd56d734d358494534861febtyler-thorne
Bug 2015935 - Adding Adaptive Performance Prefs to Nimbus Manifest (Show More…)
Feb 13 2026, 5:31 PM

Diff 1204750

toolkit/components/nimbus/FeatureManifest.yaml

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