FF141 Relnote/Expr Feat closedBy/closedby on dialogs

[hamishwillee]

FF141 adds support for HTMLDialogElement.closedBy and closedby attribute on <dialog> by default in https://bugzilla.mozilla.org/show_bug.cgi?id=1964078

This adds a release note and removes the experimental feature note.

Related docs work can be tracked in #40028

[github-actions]

Preview URLs

• /en-US/docs/Mozilla/Firefox/Experimental_features
• /en-US/docs/Mozilla/Firefox/Releases/141

External URLs (74)

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/1190623 (1 time)
• https://bugzil.la/1223880 (1 time)
• https://bugzil.la/1225110 (1 time)
• https://bugzil.la/1280613 (1 time)
• https://bugzil.la/1312588 (1 time)
• https://bugzil.la/1318984 (1 time)
• https://bugzil.la/1391243 (1 time)
• https://bugzil.la/1461589 (1 time)
• https://bugzil.la/1467846 (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/1697647 (1 time)
• https://bugzil.la/1734997 (1 time)
• https://bugzil.la/1736914 (1 time)
• https://bugzil.la/1737918 (1 time)
• https://bugzil.la/1737920 (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/1807685 (1 time)
• https://bugzil.la/1808410 (1 time)
• https://bugzil.la/1809005 (1 time)
• https://bugzil.la/1817303 (1 time)
• https://bugzil.la/1823463 (1 time)
• https://bugzil.la/1838746 (1 time)
• https://bugzil.la/1853418 (1 time)
• https://bugzil.la/1855763 (1 time)
• https://bugzil.la/1867058 (1 time)
• https://bugzil.la/1884424 (1 time)
• https://bugzil.la/1884425 (1 time)
• https://bugzil.la/1886134 (1 time)
• https://bugzil.la/1886441 (1 time)
• https://bugzil.la/1888729 (1 time)
• https://bugzil.la/1889561 (1 time)
• https://bugzil.la/1891446 (1 time)
• https://bugzil.la/1900929 (1 time)
• https://bugzil.la/1901037 (1 time)
• https://bugzil.la/1905706 (1 time)
• https://bugzil.la/1906301 (1 time)
• https://bugzil.la/1917783 (1 time)
• https://bugzil.la/1917784 (1 time)
• https://bugzil.la/1920115 (1 time)
• https://bugzil.la/1931290 (1 time)
• https://bugzil.la/1934683 (1 time)
• https://bugzil.la/1950759 (1 time)
• https://bugzil.la/1953557 (1 time)
• https://bugzil.la/1954685 (1 time)
• https://bugzil.la/1963263 (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://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://jpeg.org/jpegxl/ (1 time)
• 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/ppa/ (1 time)
• https://wiki.mozilla.org/Origin_Trials (1 time)
• https://www.mozilla.org/en-US/firefox/channel/desktop/ (3 times)
• https://www.mozilla.org/en-US/firefox/developer/ (2 times)
• https://www.mozilla.org/en-US/firefox/new/ (1 time)

---

URL: /en-US/docs/Mozilla/Firefox/Releases/141
Title: Firefox 141 for developers

• https://bugzil.la/1964078 (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-06-23 23:37:40)

[github-actions]

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