Add Firefox experimental features entry for @supports at-rule() function - #45555
Open
chrisdavidmills wants to merge 1 commit into
Open
Add Firefox experimental features entry for @supports at-rule() function#45555chrisdavidmills wants to merge 1 commit into
chrisdavidmills wants to merge 1 commit into
Conversation
chrisdavidmills
requested review from
dipikabh
and removed request for
a team
September 7, 2026 17:58
8 tasks
Contributor
|
Preview URLs (1 page) External URLs (1)URL:
|
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Description
Firefox 155 adds support for the
@supportsat-rule()function, currently only enabled by default in Nightly. In other versions, it is behind thelayout.css.supports.at-rule.enabledpref. See https://bugzilla.mozilla.org/show_bug.cgi?id=2060754.This PR adds an Experimental features entry for
at-rule(). It already has an entry in the Firefox 155 rel notes, and the feature is already documented sufficiently.Motivation
Additional details
Related issues and pull requests