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Pascal Chevrel
3:24 PM
Soft code freeze for Firefox 145 starts on Thursday, October 9 @ 8am UTC (replaces previous email)
Hello, With Firefox 144 in the Release Candidate phase this week, we are nearing the end of the
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Soft code freeze for Firefox 145 starts on Thursday, October 9 @ 8am UTC (replaces previous email)
Hello, With Firefox 144 in the Release Candidate phase this week, we are nearing the end of the
3:24 PM
Nazım Can Altınova
Oct 1
Intent to ship: PerformanceEventTiming.interactionId (for INP)
As of Firefox 144, I intend to turn PerformanceEventTiming.interactionId on by default on all
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Intent to ship: PerformanceEventTiming.interactionId (for INP)
As of Firefox 144, I intend to turn PerformanceEventTiming.interactionId on by default on all
Oct 1
Frédéric Wang
3
Sep 29
Intent to prototype: Trusted Types
Le 29/09/2025 à 11:21, Frédéric Wang a écrit : > > Standards Bodies: W3C, WhatWG, ECMA nit: I
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Intent to prototype: Trusted Types
Le 29/09/2025 à 11:21, Frédéric Wang a écrit : > > Standards Bodies: W3C, WhatWG, ECMA nit: I
Sep 29
Daniel Holbert
Sep 17
Intent to ship: CSS '-webkit-fill-available' sizing keyword in the 'height' and 'width' properties
As of today (2025-09-17), I intend to turn on support for the CSS '-webkit-fill-available'
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Intent to ship: CSS '-webkit-fill-available' sizing keyword in the 'height' and 'width' properties
As of today (2025-09-17), I intend to turn on support for the CSS '-webkit-fill-available'
Sep 17
Daniel Minor
3
Sep 17
Intent to ship: Atomics.waitAsync
This ended up shipping in Firefox 145. On Mon, Aug 18, 2025 at 10:52 AM Daniel Minor <dminor@
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Intent to ship: Atomics.waitAsync
This ended up shipping in Firefox 145. On Mon, Aug 18, 2025 at 10:52 AM Daniel Minor <dminor@
Sep 17
Donal Meehan
2
Sep 15
Soft code freeze for Firefox 144 starts on September 11 @ 8am UTC
The version bump to 145 has now landed on mozilla-central and the soft freeze period is over. Thanks,
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Soft code freeze for Firefox 144 starts on September 11 @ 8am UTC
The version bump to 145 has now landed on mozilla-central and the soft freeze period is over. Thanks,
Sep 15
Kagami Rosylight
,
―
2
Sep 12
Intent to prototype: JPEG XL decoding
Would this be the new implementation tested? jxl-rs (v0.1.0) or would it be the "JPEG-XL_OXIDE
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Intent to prototype: JPEG XL decoding
Would this be the new implementation tested? jxl-rs (v0.1.0) or would it be the "JPEG-XL_OXIDE
Sep 12
Andrew Halberstadt
,
Erich Gubler
4
Sep 11
Introducing #dev-help on Matrix
More of the latter. If you know the specific team to reach out to and how to get help, I'd say
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Introducing #dev-help on Matrix
More of the latter. If you know the specific team to reach out to and how to get help, I'd say
Sep 11
Jon Coppeard
Sep 11
Intent to ship: JavaScript Symbols as WeakMap keys
As of Firefox 146 (releasing December 9) I intend to turn Symbols as WeakMap keys on by default on
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Intent to ship: JavaScript Symbols as WeakMap keys
As of Firefox 146 (releasing December 9) I intend to turn Symbols as WeakMap keys on by default on
Sep 11
Connor Sheehan
2
Sep 9
PSA: the uplift request assessment form is now in Lando
Here are some screenshots of the form in Lando and the button to edit the form after submission. The
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PSA: the uplift request assessment form is now in Lando
Here are some screenshots of the form in Lando and the button to edit the form after submission. The
Sep 9
Maurice Dauer
Sep 9
Intent to ship: Framebusting Intervention
As of Firefox 144, I intend to ship the framebusting intervention feature and enable it by default.
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Intent to ship: Framebusting Intervention
As of Firefox 144, I intend to ship the framebusting intervention feature and enable it by default.
Sep 9
Alastor Wu
, …
Alastor Wu
3
Sep 6
Intent to prototype : Matroska playback support
We don't need any new third-party libraries. The demuxing will still be handled by nestegg, which
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Intent to prototype : Matroska playback support
We don't need any new third-party libraries. The demuxing will still be handled by nestegg, which
Sep 6
Masayuki Nakano
Sep 4
Intent to unship: `contentReadOnly` and `insertBrOnReturn` edit commands
Summary: `contentReadOnly` and `insertBrOnReturn` are available with `Document.execCommand`, `
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Intent to unship: `contentReadOnly` and `insertBrOnReturn` edit commands
Summary: `contentReadOnly` and `insertBrOnReturn` are available with `Document.execCommand`, `
Sep 4
Masayuki Nakano
Sep 4
Intent to unship: `PointerEvent.getCoalescedEvents()` in insecure context
Summary: `PointerEvent.getCoalescedEvents()` is defined as an API only in secure context. However, we
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Intent to unship: `PointerEvent.getCoalescedEvents()` in insecure context
Summary: `PointerEvent.getCoalescedEvents()` is defined as an API only in secure context. However, we
Sep 4
Makoto Kato
Sep 3
Intent to ship: screen.orientation.lock()
screen.orientation.lock() is used on some video sites such as YouTube to lock the screen orientation
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Intent to ship: screen.orientation.lock()
screen.orientation.lock() is used on some video sites such as YouTube to lock the screen orientation
Sep 3
Edgar Chen
Sep 3
Intent to Unship: beforescriptexecute and afterscriptexecute events
As of Firefox 144, I intend to stop dispatching beforescriptexecute and afterscriptexecute events to
unread,
Intent to Unship: beforescriptexecute and afterscriptexecute events
As of Firefox 144, I intend to stop dispatching beforescriptexecute and afterscriptexecute events to
Sep 3
Emilio Cobos Álvarez
Aug 28
Intent to Ship: CSS View Transitions L1
Hi, As of today, in bug 1985809, I intend to turn CSS View Transitions (L1) on by default on all
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Intent to Ship: CSS View Transitions L1
Hi, As of today, in bug 1985809, I intend to turn CSS View Transitions (L1) on by default on all
Aug 28
Andrew Halberstadt
2
Aug 27
PSA: Deprioritizing excessively large try pushes
Just to answer some questions I should have included in the original e-mail: 1. This only applies to
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PSA: Deprioritizing excessively large try pushes
Just to answer some questions I should have included in the original e-mail: 1. This only applies to
Aug 27
James Teh
Aug 26
Intent to ship: Windows UI Automation
It's unclear whether this needs an intent to prototype/ship given that it isn't a feature
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Intent to ship: Windows UI Automation
It's unclear whether this needs an intent to prototype/ship given that it isn't a feature
Aug 26
Masayuki Nakano
Aug 24
You can log mutations caused by editable web app
It's really hard to understand how an editable web app does not work on Firefox because such app
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You can log mutations caused by editable web app
It's really hard to understand how an editable web app does not work on Firefox because such app
Aug 24
Masayuki Nakano
Aug 22
MOZ_LOG_*DEBUG_ONLY() and pretty printers of bool
For the performance sensitive paths or privacy concerns, you may want to enable `MOZ_LOG` only in
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MOZ_LOG_*DEBUG_ONLY() and pretty printers of bool
For the performance sensitive paths or privacy concerns, you may want to enable `MOZ_LOG` only in
Aug 22
Nicholas Rishel
Aug 21
Intent to ship web apps in Firefox for Windows
As of this week web apps in Firefox has been enabled by default for Windows! Platforms: Windows (non-
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Intent to ship web apps in Firefox for Windows
As of this week web apps in Firefox has been enabled by default for Windows! Platforms: Windows (non-
Aug 21
Daniel Minor
Aug 21
Intent to prototype: CSS Module Scripts
Summary: This allows importing css stylesheets as modules in JavaScript using import attributes. Bug:
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Intent to prototype: CSS Module Scripts
Summary: This allows importing css stylesheets as modules in JavaScript using import attributes. Bug:
Aug 21
Daniel Holbert
Aug 20
Re: Minimum supported versions of GCC and Clang changed
Hi Mike, Exciting! It looks like https://firefox-source-docs.mozilla.org/code-quality/coding-style/
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Re: Minimum supported versions of GCC and Clang changed
Hi Mike, Exciting! It looks like https://firefox-source-docs.mozilla.org/code-quality/coding-style/
Aug 20
Daniel Minor
Aug 19
Intent to ship: upsert proposal
As of Firefox 144, I intend to enable the upsert proposal by default on all platforms. It is
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Intent to ship: upsert proposal
As of Firefox 144, I intend to enable the upsert proposal by default on all platforms. It is
Aug 19
Daniel Holbert
,
Nicolas Chevobbe
3
Aug 19
Intent to prototype and ship: improvements to <details> styling, including support for ::details-content pseudo element
Thanks, Nicolas! I missed that we already had that metabug (and that we've already added some
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Intent to prototype and ship: improvements to <details> styling, including support for ::details-content pseudo element
Thanks, Nicolas! I missed that we already had that metabug (and that we've already added some
Aug 19
Ryan VanderMeulen
2
Aug 18
Soft code freeze for Firefox 143 starts on August 14 @ 8am UTC
The version bump to 144 has now landed on firefox-main (mozilla-central) and the soft freeze period
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Soft code freeze for Firefox 143 starts on August 14 @ 8am UTC
The version bump to 144 has now landed on firefox-main (mozilla-central) and the soft freeze period
Aug 18
Keith Cirkel
Aug 18
Intent to Ship: Command and CommandFor attributes
Summary: Declarative button behaviours with the "command" and "commandfor"
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Intent to Ship: Command and CommandFor attributes
Summary: Declarative button behaviours with the "command" and "commandfor"
Aug 18
Kagami Rosylight
Aug 16
Intent to unship: element.style.MozAppearance
As of Firefox 143 we removed MozAppearance from the style properties object. Bug to remove: https://
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Intent to unship: element.style.MozAppearance
As of Firefox 143 we removed MozAppearance from the style properties object. Bug to remove: https://
Aug 16
Ting-Yu Lin 林庭宇
Aug 9
Intent to prototype: CSS text-autospace property
Summary: text-autospace automatically creates small spacing between characters of different writing
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Intent to prototype: CSS text-autospace property
Summary: text-autospace automatically creates small spacing between characters of different writing
Aug 9
