added release notes for progress() css function

[dletorey]

Description

• Removed experimental release note for progress()
• Added release note on 155 page for progress()

Motivation

• Working on MDN issue #45182

Related issues and pull requests

• BCD PR

[github-actions]

Preview URLs (1 page)

• /en-US/docs/Mozilla/Firefox/Experimental_features

External URLs (80)

URL: /en-US/docs/Mozilla/Firefox/Experimental_features
Title: Experimental features in Firefox

• https://bugzil.la/1057233 (1 time)
• https://bugzil.la/1099557 (1 time)
• https://bugzil.la/1223880 (1 time)
• https://bugzil.la/1278697 (1 time)
• https://bugzil.la/1280613 (1 time)
• https://bugzil.la/1312588 (1 time)
• https://bugzil.la/1318984 (1 time)
• https://bugzil.la/1539075 (1 time)
• https://bugzil.la/1602129 (1 time)
• https://bugzil.la/1617609 (1 time)
• https://bugzil.la/1676779 (1 time)
• https://bugzil.la/1676791 (1 time)
• https://bugzil.la/1687364 (1 time)
• https://bugzil.la/1693576 (1 time)
• https://bugzil.la/1726108 (1 time)
• https://bugzil.la/1736914 (1 time)
• https://bugzil.la/1737918 (1 time)
• https://bugzil.la/1737920 (1 time)
• https://bugzil.la/1744292 (1 time)
• https://bugzil.la/1750902 (1 time)
• https://bugzil.la/1754897 (1 time)
• https://bugzil.la/1794475 (1 time)
• https://bugzil.la/1794628 (1 time)
• https://bugzil.la/1804573 (1 time)
• https://bugzil.la/1804775 (1 time)
• https://bugzil.la/1807685 (1 time)
• https://bugzil.la/1808410 (1 time)
• https://bugzil.la/1809005 (1 time)
• https://bugzil.la/1817303 (1 time)
• https://bugzil.la/1824875 (1 time)
• https://bugzil.la/1830022 (1 time)
• https://bugzil.la/1853418 (1 time)
• https://bugzil.la/1855763 (1 time)
• https://bugzil.la/1886134 (1 time)
• https://bugzil.la/1891446 (1 time)
• https://bugzil.la/1900929 (1 time)
• https://bugzil.la/1916277 (1 time)
• https://bugzil.la/1919718 (1 time)
• https://bugzil.la/1941406 (1 time)
• https://bugzil.la/1953557 (1 time)
• https://bugzil.la/1974383 (1 time)
• https://bugzil.la/1974386 (1 time)
• https://bugzil.la/1974787 (1 time)
• https://bugzil.la/1976656 (1 time)
• https://bugzil.la/1984310 (1 time)
• https://bugzil.la/1986393 (1 time)
• https://bugzil.la/1991135 (1 time)
• https://bugzil.la/2016688 (1 time)
• https://bugzil.la/2018797 (1 time)
• https://bugzil.la/2018900 (1 time)
• https://bugzil.la/2024601 (1 time)
• https://bugzil.la/2026848 (1 time)
• https://bugzil.la/2036160 (1 time)
• https://bugzil.la/2037673 (1 time)
• https://bugzil.la/2042986 (1 time)
• https://bugzil.la/2044602 (1 time)
• https://bugzil.la/2046153 (1 time)
• https://bugzil.la/2047706 (1 time)
• https://bugzil.la/2055710 (1 time)
• https://bugzil.la/502258 (1 time)
• https://bugzil.la/558594 (1 time)
• https://bugzil.la/778617 (1 time)
• https://bugzil.la/917755 (1 time)
• https://bugzil.la/918189 (1 time)
• https://bugzilla.mozilla.org (1 time)
• https://developers.google.com/search/docs/specialty/explicit/guidelines (1 time)
• https://drafts.csswg.org/css-inline/ (1 time)
• https://en.wikipedia.org/wiki/Graphics_Processing_Unit (1 time)
• https://github.com/mozilla/explainers/tree/main/archive/ppa-experiment (1 time)
• https://github.com/tc39/proposal-intl-locale-info (1 time)
• https://jpeg.org/jpegxl/ (2 times)
• https://support.mozilla.org/en-US/kb/about-config-editor-firefox (1 time)
• https://support.mozilla.org/en-US/kb/privacy-preserving-attribution (1 time)
• https://w3c.github.io/mathml-core/ (1 time)
• https://w3c.github.io/ppa/ (1 time)
• https://wiki.mozilla.org/Origin_Trials (1 time)
• https://www.firefox.com/en-US/ (1 time)
• https://www.firefox.com/en-US/channel/desktop/ (3 times)
• https://www.firefox.com/en-US/channel/desktop/developer/ (2 times)
• https://www.rtalabel.org/?content=howto (1 time)

(comment last updated: 2026-09-01 11:05:52)

[dipikabh]

Thanks, @dletorey.

The removal from Experimental features looks good.

Let's drop the update in the other file since that's getting covered in #45270.

[github-actions]

This pull request has merge conflicts that must be resolved before it can be merged.