Releases/Firefox 87

Information and links to do with Firefox 87. This may be useful for Mozilla contributors actively working on the release. It is also a record for future reference.

About The 87 Release

• Release owner: Julien Cristau (:jcristau)
• Corresponding ESR release: 78.9.0
• Milestones document for the 87 cycle timeline from Nightly to Release.
• QA: Test Plan - PI requests - [Feature priorities]
• All experiments for 87
• Postmortem notes, 2 weeks after the release.

Release Checklists

• Working checklists for 87
• ESR 78 checklists

Process Docs

• Off-train releases - Various ways to ship features that aren't in-tree.
• Guidelines for RelMan: Uplift rules - Release tracking rules
• Security: Sec Triage - Sec-approval -

Key Milestones

87.0a1 Nightly

• First released: 2021-01-25
• Release Notes
• Beta simulation reference doc

87.0 Beta

• 87.0b1 (DevEdition and Beta channels): 2021-02-22
• 87.0b6 End of EARLY_BETA_OR_EARLIER: 2021-03-05
• Release Notes

87.0 Release

• Release date: 2021-03-23
• Desktop Release Notes / Mobile Release Notes

Queries

• Mission Control 1 crash dashboard: http://missioncontrol.telemetry.mozilla.org/
• Mission Control 2 crash dashboard: https://metrics.mozilla.com/public/sguha/mc2/missioncontrol_v2.html