Project Fission

Project Fission

Project Fission is the project name for revamping and strengthening the architecture of Firefox browser.

Project planning

Project Fission is a Cross Functional engineering effort across the Platform organization.

Primary Meta bug - Bug 1432593 - (meta) Project Fission

<more to come>

Dashboard: https://mana.mozilla.org/wiki/display/PM/Fission+Dashboard+iFrame+Test

Bugzilla M3 Milestones

Full Query

Resolution	ID	Summary	Whiteboard	Fission milestone	Assigned to
FIXED	1533958	[Fission] Make <select> dropdowns work with Fission		M3	Abdoulaye O. LY
FIXED	1553490	Remove BrowsingContextId		M3	Andreas Farre [:farre]
FIXED	1541515	Consolidate IPC calls to nsISHEntry inside of nsDocShell::GetChildSHEntry		M3	Anny Gakhokidze [:annyG]
FIXED	1546761	Consolidate IPC calls to nsISHistory inside of nsDocShell::OnNewURI		M3	Anny Gakhokidze [:annyG]
FIXED	1539482	Reduce the number of IPC calls on nsISHEntry in nsDocShell::LoadHistoryEntry		M3	Anny Gakhokidze [:annyG]
FIXED	1557808	Call BrowserParent::SendSkipBrowsingContextDetach in SendSkipBrowsingContextDetach		M3	Andrew McCreight [:mccr8]
FIXED	1557807	Remove null check of sourceBc ContentChild::RecvWindowPostMessage()		M3	Andrew McCreight [:mccr8]
FIXED	1443683	Drag and Drop may not work on OOP IFrames		M3	Neil Deakin
FIXED	1533948	[Fission] Make BrowserTabChild ready for Fission		M3	Neil Deakin
FIXED	1518919	Communicate current CSS 'visibility' value to oop-frames		M3	Hiroyuki Ikezoe (:hiro)
FIXED	1541253	Propagate CSS visibility info to descendant documents and use it to tell whether a given nsIFrame is hidden		M3	Hiroyuki Ikezoe (:hiro)
FIXED	1532901	event.screenX and event.screenY are wrong inside out-of-process iframes	[fission-event-m2]	M3	Henri Sivonen (:hsivonen)
FIXED	1557448	`this` is null in `willDestroy` and `didDestroy` methods on JSWindowActor		M3	John Dai[:jdai]
FIXED	1557062	'browsingContext' getter should be on JSWindowActorParent		M3	John Dai[:jdai]
FIXED	1552268	Allow omitting `moduleURI` for JSWindowActor declarations		M3	John Dai[:jdai]
FIXED	1552263	Add a `docShell` attribute to JSWindowActorChild		M3	John Dai[:jdai]
DUPLICATE	1538986	`WindowGlobalInit` should include the initial `DocumentURI`		M3	John Dai[:jdai]
FIXED	1538984	WindowGlobal{Parent,Child}::GetActor should fail after actor is closed		M3	John Dai[:jdai]
FIXED	1538981	Clear `mManager` to nullptr in `ActorDestroy`		M3	John Dai[:jdai]
FIXED	1538979	Call `willDestroy` and `didDestroy` lifecycle methods on JSWindowActor	[4/16] 2 patches need revision	M3	John Dai[:jdai]
FIXED	1543287	Fission a11y: Add embedded OOP iframe DocAccessibleParent as child of embedder DocAccessibleParent		M3	James Teh [:Jamie]
FIXED	1543307	Fission a11y: Expose COM proxy for embedded OOP iframe document as child of embedder OuterDocAccessible		M3	James Teh [:Jamie]
FIXED	1554831	Fission a11y: Fix HWND returned by accessibles in OOP iframes with window emulation		M3	James Teh [:Jamie]
FIXED	1543282	Fission a11y: Expose accessible id of OOP iframes on BrowserBridgeParent		M3	James Teh [:Jamie]
FIXED	1543298	Fission a11y: Expose COM proxy for embedded OOP iframe document on embedder BrowserBridgeChild		M3	James Teh [:Jamie]
FIXED	1543313	Fission a11y: Send embedder iframe as parent COM proxy for embedded OOP DocAccessibleChild		M3	James Teh [:Jamie]
FIXED	1553706	Fission a11y: Fix IAccessible::accChild for OOP iframes		M3	James Teh [:Jamie]
FIXED	1533673	Make APZ tell chrome main thread the transforms for chrome to content coordinate spaces when GPU process is used	[fission-event-m2]	M3	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
FIXED	1524232	Dispatch synthetic mouse moves via APZ	[fission-event-m2]	M3	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
WORKSFORME	1524989	Correctly target scroll events when overscrolling an out-of-process iframe	[fission-event-m2]	M3	Kartikaya Gupta (email:kats@mozilla.staktrace.com)
FIXED	1540839	Preserve BrowsingContext across toplevel process switches		M3	Kyle Machulis [:qdot] [:kmachulis] (INACTIVE)
FIXED	1505909	[Fission] Make the context menu Fission-aware		M3	Mike Conley (:mconley) (:⚙️)
FIXED	1533949	[Fission] Make BrowserChild ready for Fission		M3	Mike Conley (:mconley) (:⚙️)
FIXED	1556483	Expose initial document bit on WindowGlobalParent		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1556061	Add BrowsingContext::IsTopContent method		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1555753	Automatically preserve Browsing Contexts in Fission windows.		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1555492	WindowGlobalParent::DocumentURI is sometimes wrong		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1555488	Wrong WindowProxy after process swap when preserving Browsing Contexts		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1555382	Perma browser chrome browser_navigation_process_swap.js should load in a web-content process - "file" == "web" when Gecko 69 merges to Beta on 19-07-01	[stockwell needswork:owner]	M3	Nika Layzell [:nika] (ni? for response)
FIXED	1554785	Limit webIsolated process count per-site to 1		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1451455	Load event not fired on OOP iframes		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1549783	Ensure cached contexts come after non-cached ones in EnsureSubscribed		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1550613	JSWindowActor crashes when sending messages early in lifecycle for in-process actors		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1554280	Expose `IsProcessRoot` on Window Global Actors		M3	Nika Layzell [:nika] (ni? for response)
FIXED	1443687	Using IFrame scrollbar on OOP IFrame can cause crash		M3
WONTFIX	1524986	Request rerouting of keyboard events received after giving away focus (blur)	[fission-event-m2]	M3
INVALID	1541728	toString on remote WindowProxy should be "[object Window]" not "[object Object]"		M3
DUPLICATE	1529531	Request rerouting of pointer events targeted at an out-of-process iframe	[fission-event-m2]	M3
WONTFIX	1524987	Content process should be able to take APZ focus without providing layers	[fission-event-m2]	M3
INVALID	1537680	APZ should perform mousemove hit testing and LayersId stamping in unfocused windows	[fission-event-m2]	M3
FIXED	1556657	SHistoryParent::RecvFindEntryForBFCache should fill in all its outparams		M3	Peter Van der Beken [:peterv]
DUPLICATE	1518917	Consider maintaining a clipped area for OOP iframes		M3	Ryan Hunt [:rhunt]
DUPLICATE	1523668	Support screenshotting out of process iframes		M3	Ryan Hunt [:rhunt]
FIXED	1556555	Handle getting the TabId for nsDisplayRemote when in a content process		M3	Ryan Hunt [:rhunt]
FIXED	1519546	Track visibility for OOP iframes and add infrastructure for clipping and scaling	[gfx-noted]	M3	Ryan Hunt [:rhunt]
FIXED	1525720	Fission: Enable/disable rendering of OOP iframes when switching tabs		M3	Ryan Hunt [:rhunt]
FIXED	1539595	Consider an origin-whitelist for early site isolation for AMO and accounts.firefox.com	[post-critsmash-triage][adv-main69+]	M3	Tom Ritter [:tjr]
FIXED	1554680	COOP 'unsafe-allow-outgoing' doesn't allow interacting with popups	[necko-triaged]	M3	Valentin Gosu [:valentin] (he/him)
FIXED	1555036	COOP: check browsing context's popup sandboxing flag		M3	Valentin Gosu [:valentin] (he/him)
FIXED	1527314	Expand Cross-Origin-Opener-Policy tests		M3	Valentin Gosu [:valentin] (he/him)
FIXED	1533877	Write WPT tests for Cross-Origin header	[necko-triaged][wptsync upstream]	M3	Valentin Gosu [:valentin] (he/him)
FIXED	1494796	Convert ThreadClient to protocol.js front	[devtools-backward-compat] dt-fission-m1	M3	Yulia Startsev [:yulia]

62 Total; 62 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Team

Role	Name
Engineering Project Manager	Ron Manning
Product Manager	Kev Needham
Project Tech Lead	Nika Layzell
Accessibility Lead	James Teh
DevTools Engineering Manager	Soledad Penadés
DevTools Engineering	Alexandre Poirot
DevTools Engineering	Yulia Startsev
DOM Engineering Manager	Neha Kochar
DOM Engineering	Kyle Machulis
DOM Engineering	Peter Van Der Beken
DOM Engineering	Andreas Farre
DOM Engineering	Alphan Chen
DOM Engineering	John Dai
DOM Engineering	Henri Sivonen
DOM Consultant	Ehsan Akhgari
FrontEnd Engineering	Felipe Gomes
FrontEnd Engineering	Mike Conley
Graphics Engineering	Ryan Hunt
JS/WASM Security Consultant	Luke Wagner
Memshrink Lead	Eric Rahm
Memshrink Engineering	Kris Maglione
Layout Lead	Jonathan Watt
Media and WebRTC Lead	Nils Ohlmeier
Necko Engineering	Valentin Gosu
Necko Engineering	Dragana Damjanovic
Office-of-CTO Consultant	Boris Zbarsky
Security Lead	Tom Ritter
Standards Lead	Anne van Kesteren

Sub-pages

• Memory
• FrontEnd

Communications

Meetings: Thursdays 12pm Pacific, "Fission" Vidyo room

• Project Fission -- Weekly meeting
• RASCI (Mozilla only)

Find us on Slack

• #Fission