1991105 - Enable @scope pref `layout.css.at-scope.enabled` by default on all channels

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, enhancement)

Comment 1

[Sebastian Zartner [:sebo]]

@David, don't forget to add dev-doc-needed and a release note request for things that should be documented and mentioned in the release notes.

[Why is this notable]: Part of Interop 2025 and a long wished-for feature by authors.
[Affects Firefox for Android]: yes
[Suggested wording]: The @scope rule is now supported, allowing authors to restrict styling to a subtree of the DOM. This avoids having to write overly-specific selectors.
[Links (documentation, blog post, etc)]:
https://developer.mozilla.org/en-US/docs/Web/CSS/@scope

Comment 2

[Diego Ciudad Real Escalante [:descalante]]

Attachment: Bug 1991105 - Enable @scope pref by default on all channels. r=dshin

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/2e4fd6c92d3b
https://hg.mozilla.org/integration/autoland/rev/aa5af8390ce0
Enable @scope pref by default on all channels. r=dshin

Comment 4

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/aa5af8390ce0

Comment 5

[Dianna Smith [:diannaS]]

Added to 146 release notes
https://www.firefox.com/en-US/firefox/146.0a1/releasenotes/

Comment 6

[Chris Mills [:cmills]]

See https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/146#css.