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Beth Rennie
, …
Dan Mosedale
6
Jun 25
Support for shared per-task setup and teardown in mochitest tests and xpcshell tests
Good news everyone! This should now be available in all xpcshell and mochitests. Support for
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Support for shared per-task setup and teardown in mochitest tests and xpcshell tests
Good news everyone! This should now be available in all xpcshell and mochitests. Support for
Jun 25
Sajid Anwar
Jun 24
Intent to Prototype: text-box-trim / text-box-edge
Summary: The text-box-trim and text-box-edge CSS properties (and associated text-box shorthand)
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Intent to Prototype: text-box-trim / text-box-edge
Summary: The text-box-trim and text-box-edge CSS properties (and associated text-box shorthand)
Jun 24
Sajid Anwar
Jun 23
Intent to Ship: sibling-index() and sibling-count()
As of Firefox 154, I intend to turn the sibling-index() and sibling-count() CSS functions on by
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Intent to Ship: sibling-index() and sibling-count()
As of Firefox 154, I intend to turn the sibling-index() and sibling-count() CSS functions on by
Jun 23
Gabriele Svelto
, …
Greg Stoll
7
Jun 22
Correlations in crash reports
I definitely find the DLL entries helpful in tracking down crashes caused by said DLLs :-) (in fact,
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Correlations in crash reports
I definitely find the DLL entries helpful in tracking down crashes caused by said DLLs :-) (in fact,
Jun 22
Tom Ritter
Jun 18
Updates to Firefox Sec Approval, Rating Process, and Keywords
On behalf of the security team, we wanted to take this opportunity to thank everyone for their
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Updates to Firefox Sec Approval, Rating Process, and Keywords
On behalf of the security team, we wanted to take this opportunity to thank everyone for their
Jun 18
Sam Johnson
Jun 17
Intent to prototype and ship: Time picker UI
As of Firefox 154, I intend to turn on the time picker UI for <input type="time"> and
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Intent to prototype and ship: Time picker UI
As of Firefox 154, I intend to turn on the time picker UI for <input type="time"> and
Jun 17
Chris H-C
Jun 16
Phabricator Data Reviews: remember to add the bug number
Hello! All new or expanded data collection in Mozilla projects are subject to Data Collection Review[
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Phabricator Data Reviews: remember to add the bug number
Hello! All new or expanded data collection in Mozilla projects are subject to Data Collection Review[
Jun 16
Daniel Minor
Jun 16
Intent to prototype and ship: Iterator Chunking
As of Firefox 154, I intend to turn Iterator chunking on by default. It has been developed behind the
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Intent to prototype and ship: Iterator Chunking
As of Firefox 154, I intend to turn Iterator chunking on by default. It has been developed behind the
Jun 16
Daniel Minor
Jun 16
Intent to prototype and ship: Iterator Join
As of Firefox 154, I intend to turn Iterator.prototype.join on by default. It has been developed
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Intent to prototype and ship: Iterator Join
As of Firefox 154, I intend to turn Iterator.prototype.join on by default. It has been developed
Jun 16
Daniel Minor
Jun 16
Intent to prototype and ship: Iterator Includes
As of Firefox 154, I intend to turn Iterator.prototype.includes on by default. It has been developed
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Intent to prototype and ship: Iterator Includes
As of Firefox 154, I intend to turn Iterator.prototype.includes on by default. It has been developed
Jun 16
Sajid Anwar
,
Nicolas Chevobbe
2
Jun 16
Intent to Prototype: sibling-index() and sibling-count()
Thanks for implementing this, it's awesome I found a couple issues for DevTools: - Bug 2047874 -
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Intent to Prototype: sibling-index() and sibling-count()
Thanks for implementing this, it's awesome I found a couple issues for DevTools: - Bug 2047874 -
Jun 16
Sajid Anwar
,
Nicolas Chevobbe
2
Jun 16
Intent to Prototype: alpha() relative color function
That's great :) Note that I was playing with the current version in Nightly and I found a couple
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Intent to Prototype: alpha() relative color function
That's great :) Note that I was playing with the current version in Nightly and I found a couple
Jun 16
Masayuki Nakano
Jun 15
Some improvements of logging/debug printing with {fmt}
Hi, ` RefPtr `, ` nsCOMPtr `, ` mozilla::OwningNonNull `, ` mozilla::StaticAutoPtr ` and ` mozilla::
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Some improvements of logging/debug printing with {fmt}
Hi, ` RefPtr `, ` nsCOMPtr `, ` mozilla::OwningNonNull `, ` mozilla::StaticAutoPtr ` and ` mozilla::
Jun 15
Sajid Anwar
Jun 13
Intent to Prototype: CSS progress() function
Summary: The progress() CSS function computes the position of a value relative to a start and an end.
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Intent to Prototype: CSS progress() function
Summary: The progress() CSS function computes the position of a value relative to a start and an end.
Jun 13
Manuel Bucher
Jun 11
Intent-To-Unship: cookieBehavior LIMIT_FOREIGN (3) and REJECT_TRACKER (4)
We intend to remove support for two legacy cookie behaviors in Firefox: cookieBehavior=3 (
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Intent-To-Unship: cookieBehavior LIMIT_FOREIGN (3) and REJECT_TRACKER (4)
We intend to remove support for two legacy cookie behaviors in Firefox: cookieBehavior=3 (
Jun 11
Ryan Hunt
Jun 10
Intent to ship: WebAssembly JS-Promise-Integration
As of Fx153 I intend to enable WebAssembly JS-Promise-Integration (JSPI) by default on all platforms.
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Intent to ship: WebAssembly JS-Promise-Integration
As of Fx153 I intend to enable WebAssembly JS-Promise-Integration (JSPI) by default on all platforms.
Jun 10
Daniel Minor
,
Tom Ritter
4
Jun 2
Intent to prototype and ship: Intl.LocaleInfo
> What would the expected behaviour be in this case? If you're querying a specific locale,
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Intent to prototype and ship: Intl.LocaleInfo
> What would the expected behaviour be in this case? If you're querying a specific locale,
Jun 2
Daniel Minor
Jun 1
Intent to prototype and ship: Source Phase Imports
As of Firefox 153, I intend to turn Source Phase Imports on by default. It has been developed behind
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Intent to prototype and ship: Source Phase Imports
As of Firefox 153, I intend to turn Source Phase Imports on by default. It has been developed behind
Jun 1
Arnaud Bienner
May 29
Intent to ship: IndexedDB getAllRecords() and IDBGetAllOptions for getAll()/getAllKeys()
As of Firefox 153, I intend to ship getAllRecords and IDBGetAllOptions for getAll()/getAllKeys() by
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Intent to ship: IndexedDB getAllRecords() and IDBGetAllOptions for getAll()/getAllKeys()
As of Firefox 153, I intend to ship getAllRecords and IDBGetAllOptions for getAll()/getAllKeys() by
May 29
Olivier (shtrom) Mehani
2
May 28
`mach try` now uses the new lando instance
Hi all, More updates on try and new lando. On Thu, 16 Apr 2026 at 16:35, Olivier (shtrom) Mehani <
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`mach try` now uses the new lando instance
Hi all, More updates on try and new lando. On Thu, 16 Apr 2026 at 16:35, Olivier (shtrom) Mehani <
May 28
Simon Farre
May 22
Intent to prototype & ship: Picture in Picture API
As of Firefox 153 I intend to ship the Picture-in-Picture API by default. Summary: Implement the
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Intent to prototype & ship: Picture in Picture API
As of Firefox 153 I intend to ship the Picture-in-Picture API by default. Summary: Implement the
May 22
Eemeli Aro
May 21
Intent to Ship: Importing text modules
As of Firefox 153, I intend to turn text module imports on by default on all platforms. It has been
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Intent to Ship: Importing text modules
As of Firefox 153, I intend to turn text module imports on by default on all platforms. It has been
May 21
Bas Schouten
,
Alessio Placitelli
2
May 21
Removed Legacy Mirrors
Great job, Bas! On Wed, 20 May 2026 at 22:39, 'Bas Schouten' via firef...@mozilla.org <
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Removed Legacy Mirrors
Great job, Bas! On Wed, 20 May 2026 at 22:39, 'Bas Schouten' via firef...@mozilla.org <
May 21
Keith Cirkel
2
May 19
Intent to Ship: Parser changes to "select"
Errata: the flag is `dom.lift_select_parser_restrictions.enabled`, not `dom.element.popoverhint.
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Intent to Ship: Parser changes to "select"
Errata: the flag is `dom.lift_select_parser_restrictions.enabled`, not `dom.element.popoverhint.
May 19
Keith Cirkel
May 19
Intent to Ship: Popover=hint "new behaviours"
Summary: `popover=hint` attribute changed behaviours to smooth over some edge cases Bug: https://
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Intent to Ship: Popover=hint "new behaviours"
Summary: `popover=hint` attribute changed behaviours to smooth over some edge cases Bug: https://
May 19
Swarup Ukil
May 15
Intent to prototype: Advanced CSS attr() function
Summary: The basic CSS attr() function has been supported since Firefox 1; however, support for it
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Intent to prototype: Advanced CSS attr() function
Summary: The basic CSS attr() function has been supported since Firefox 1; however, support for it
May 15
Edgar Chen
May 13
Intent to prototype & ship: Pointer Lock unadjustedMovement
Summary: Element.requestPointerLock() gains a PointerLockOptions dictionary argument with a boolean
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Intent to prototype & ship: Pointer Lock unadjustedMovement
Summary: Element.requestPointerLock() gains a PointerLockOptions dictionary argument with a boolean
May 13
Leo Tenenbaum
May 12
Intent to Prototype: EditContext
Currently, the only ways to handle the diverse range of text input methods out there (IME composition
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Intent to Prototype: EditContext
Currently, the only ways to handle the diverse range of text input methods out there (IME composition
May 12
Kershaw Jang
May 12
[dev-platform] Intent to Prototype and Ship: Happy Eyeballs v3
Summary: We are introducing Happy Eyeballs v3, a new connection-establishment algorithm that replaces
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[dev-platform] Intent to Prototype and Ship: Happy Eyeballs v3
Summary: We are introducing Happy Eyeballs v3, a new connection-establishment algorithm that replaces
May 12
Emilio Cobos Álvarez
,
Nicolas Chevobbe
2
May 12
Intent to prototype and ship: CSS image(<color>) function (and use it for light-dark() images)
There's some minor work needed for DevTools (making sure that we show the color swatch for the
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Intent to prototype and ship: CSS image(<color>) function (and use it for light-dark() images)
There's some minor work needed for DevTools (making sure that we show the color swatch for the
May 12
