Releases/Firefox 83

Information and links to do with Firefox 83. This may be useful for Mozilla contributors actively working on the release. It is also a record for future reference.

About the 83 release

• Release owner: Pascal Chevrel (:pascalc)
• Corresponding ESR release: 78.5.0
• Milestones document for the 83 cycle timeline from Nightly to release.
• QA: Test Plan - PI requests - [Feature priorities]
• All experiments for 83
• Postmortem notes, 2 weeks after the release.

Release checklists

• Working [checklists for 83
• ESR 78 checklists
• Blank checklist templates

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 -

Dates of 83 releases

83.0a1 Nightly

• First released: 2020-09-21
• Release notes
• beta simulation reference doc

83 Beta

• 83.0b1 (dev ed and beta channels): 2020-10-20
• 83.0b6 End of EARLY_BETA_OR_EARLIER: 2020-10-30
• Release notes - staging - final

83.0 Release

• 2020-11-17
  • desktop: https://www.mozilla.org/firefox/83.0/releasenotes/

Queries

• Mission Control crash dashboard: https://metrics.mozilla.com/~sguha/mz/missioncontrol/ex1/mc2/beta.html
• Mission Control daily snapshots: https://docs.google.com/spreadsheets/d/1F9mHl1o3nocVbLXTz7x2KdmNiUpIRDJgN5TN2MmbtFA/edit?pli=1#gid=274778338