Platform

This wiki page is devoted to the planning, scheduling, and documenting of meetings, discussions, and status of the Mozilla platform teams.

Planning

• See The Platform Planning Page for notes on upcoming releases and planning events. (NOTE: this used to be the Post1.9Planning Spreadsheets for all releases after 1.9.).
• See also Firefox/Namoroka#Firefox.next Platform Requirements and its talk page.
• See also the Wanted page for a few items wanted by extension/application developers

Bug Triage

Regression Engineering Owner (REO)

Every release has an assigned Regression Engineering Owner (formerly known as "Engineering Release Boss") whose responsibilities include:

• be a partner for release management's Release Manager assigned to the same release
• ensure a decision is made about each regression reported in the release
  • push for the responsible team to fix it
  • back related changes out
  • ship with it
  • delay shipping
• keep a mental state of how we are doing with regressions in a release
• pay close attention to release-drivers mailing list
• run the weekly regression triage meeting

Weekly Regression Triage Meeting

• Wednesdays 8-9 Pacific in Zoom: https://mozilla.zoom.us/j/683008149
• #release-drivers on Riot for backchannel
• REO for each active release goes through the bug queries for their release and sees if something requires a needinfo or email to a relevant party
  • Security bugs are handled in their own triage process
• driving down the numbers on the Release Health Dashboard is a nice output
• in case it's necessary, here are the owners associated with bugzilla components

Asynchronous Regression Tracking

• Engineering managers and component owners keep track of regressions, especially the new ones. They look through the list for bugs in their components and set the tracking flags for a particular release to reflect their plans for the bug, leaving an explanation in the bug when the status is changed:
  • affected: this regression should be fixed in this particular release (it must be assigned);
  • wontfix: we will not take a fix for this regression in this particular release;
  • fix-optional: we will take a fix if one appears, but otherwise it will go unfixed in this release;
  • ?: we should talk about this bug in triage

Crash Bug Triage

• 1-10 position in release: needs an owner, tracking release, needs a fix
• 11-30 position in release: needinfo component owner looking for an owner to investigate
• 31-50 position in release: case-by-case, mostly fix-optional
• Above 50: mark as fix-optional
• Check for exploitability - you may want to file the bug as security sensitive

Bugzilla Queries

General Queries

Created Last 90 Days

• Core All (bugzilla table)
• Core Regressions (bugzilla table)

Modified Last 90 Days

• Core All (bugzilla table)
• Core Regressions (bugzilla table)

Flagged Bugs

• Bugs tagged with 'triage-managers' in the whiteboard

New Regressions

Criteria

Keywords	regression
status-firefox (this version)	affected
status-firefox (previous version)	unaffected, implying this is a new regression
tracking-firefox (this version)	not "-" (tracked or untriaged)

Carry Over Regressions

Criteria

Keywords	regression
status-firefox (this version)	affected
status-firefox (previous version)	affected (or related)
tracking-firefox (this version)	not "-" (tracked or untriaged)

Bug Lists

Note: for non-recent regressions (let's say, more than 5 releases old) rather than remove the `regression` keyword please set the status to `fix-optional` across the board. This will remove it from the Regression triage radar, but still allow the bug to be tracked by others as a regression.

Version	New Bugs	New w/Needinfos	Carry Over	Carry Over w/Needinfos	Open S1/S2 Bugs	Fixed Bug "Burndown" List
129	LINK	LINK	LINK	LINK	LINK	LINK
128	LINK	LINK	LINK	LINK	LINK	LINK
127	LINK	LINK	LINK	LINK	LINK	LINK

Regression Engineering Owner Schedule

If you can't find the person in charge of a release, slide down to the next one in the list.

• Firefox 78 - Gian-Carlo Pascutto (:gcp)
• Firefox 77 - Rachel Tublitz
• Firefox 76 - Tim Spurway

Past Regression Engineering Owners

• Firefox 75 - Jens Stutte
• Firefox 74 - Ethan Tseng
• Firefox 73 - Sean Voisen
• Firefox 72 - Jim Mathies
• Firefox 71 - Florian Quèze
• Firefox 70 - Janet Dragojevic
• Firefox 69 - Kate Hudson (:k88hudson)
• Firefox 68 - Patricia Lawless
• Firefox 67 - Neha Kochar (:neha) [Note: Mike Taylor graciously offered to do this before Neha volunteered]
• Firefox 66 - Tim Spurway
• Firefox 65 - Jared Wein (:jaws)
• Firefox 64 - Andrew Overholt (:overholt)
• Firefox 63 - David Durst (:ddurst)
• Firefox 62 - Mike Taylor (:miketaylr)
• Firefox 61 - Marion Daly (:mdaly)
• Firefox 60 - Jim Mathies
• Firefox 59 - Andrew Overholt + Mike Taylor (:miketaylr)
• Firefox 58 - Mike Taylor (:miketaylr)
• Firefox 57 - Jim Mathies
• Firefox 56 - Panos Astithas (:past)
• Firefox 55 - Mike Taylor (:miketaylr)
• Firefox 54 - Nathan Froyd
• Firefox 53 - Randell Jesup
• Firefox 52 - Ryan VanderMeulen
• Firefox 51 - Milan Sreckovic
• Firefox 50 - Andrew Overholt
• Firefox 49 - David Bolter
• Firefox 48 - James Willcox
• Firefox 47 - Jim Mathies
• Firefox 46 - Jim Mathies

Platform Team Goals

Main article: Platform/Roadmap

2015	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2014	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2013	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2012	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2011	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2010	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2009	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2008	Q1 Goals	Q2 Goals	Q3 Goals	Q4 Goals
2007	-	Q2 Goals	Q3 Goals	Q4 Goals

Meeting Notes

Create a new weekly agenda from the template: <createbox> align=left type=create preload=Platform/0-0-0 default=2025-06-10 prefix=Platform/ </createbox>

2008

Platform/1.9.1 Platform/1.9.1/Content

2007

Platform/2007-Q2-Goals Platform/2007-Q3-Goals Platform/2007-Q4-Goals

Mozilla Platform Functional Groups

Some teams have their own meetings during the week to discuss specific issues:

• Layout Team
• Graphics Team
• Mac Team
• DOM Team
• JavaScript Team

Platform Active Projects

Current major feature or initiatives in Platform

• 60 FPS Initiative

All Platform pages

Visit Special:PrefixIndex/Platform/ to see all subpages of "Platform" on wiki.allizom.org.

See Also

• Mozilla DevRel Dashboard - dynamic overview of [META] and other high level bugs in CSS, DOM, DevTools, MDN, Toolkit, etc.