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[WebAPI[ Navigation API: Implement #dom-navigationprecommitcontroller-addhandler

Content:WebAPIWeb API docsWeb API docs

Firefox 148

Status: Open.

Task

#42780 In mdn/content;

· Rumyra opened on Jan 15, 2026

Improve the description of IDBFactory.deleteDatabase and mention blocked state

Content:WebAPIWeb API docsWeb API docs

needs triageTriage needed by staff and/or partners. Automatically applied when an issue is opened.Triage needed by staff and/or partners. Automatically applied when an issue is opened.

Status: Open.

#42779 In mdn/content;

· hsingh-moz opened on Jan 14, 2026

Wording issue "but the heights of section elements cannot exceed 200px" should be "but the heights of section elements cannot be lower than 200px"

Content:CSSCascading Style Sheets docsCascading Style Sheets docs

needs triageTriage needed by staff and/or partners. Automatically applied when an issue is opened.Triage needed by staff and/or partners. Automatically applied when an issue is opened.

Status: Open.

#42775 In mdn/content;

· coryk135 opened on Jan 13, 2026

[CSS] Firefox 147 'anchor-center' slider demo isn't working

Content:CSSCascading Style Sheets docsCascading Style Sheets docs

needs triageTriage needed by staff and/or partners. Automatically applied when an issue is opened.Triage needed by staff and/or partners. Automatically applied when an issue is opened.

Status: Open.

#42767 In mdn/content;

· ghiscoding opened on Jan 13, 2026

Range, StaticRange: deduplicate content from AbstractRange

Content:WebAPIWeb API docsWeb API docs

Status: Open.

#42760 In mdn/content;

· Josh-Cena opened on Jan 12, 2026

Write a glossary page for "memoization"

Content:GlossaryGlossary entriesGlossary entries

Status: Open.

#42759 In mdn/content;

· wbamberg opened on Jan 12, 2026

[WebAPI] Implement Document Picture-in-Picture API

Content:WebAPIWeb API docsWeb API docs

Firefox 148

Status: Open.

Task

#42756 In mdn/content;

· Rumyra opened on Jan 12, 2026

[WebAPI] Ship the Sanitizer API

Content:WebAPIWeb API docsWeb API docs

Firefox 148

Status: Open.

Task

#42755 In mdn/content;

· Rumyra opened on Jan 12, 2026

[CSS] Implement support for &lt;number&gt; and <code>&lt;attr-unit&gt;</code>

Content:CSSCascading Style Sheets docsCascading Style Sheets docs

Firefox 148

Status: Open.

Task

#42754 In mdn/content;

· Rumyra opened on Jan 12, 2026

[CSS] Turn on the preference of shape() on all channels

Content:CSSCascading Style Sheets docsCascading Style Sheets docs

Firefox 148

Status: Open.

Task

#42753 In mdn/content;

· Rumyra opened on Jan 12, 2026

[WebAPI] pointerrawupdate event does not set movementX/Y

Content:WebAPIWeb API docsWeb API docs

Firefox 148

Status: Open.

Task

#42752 In mdn/content;

· Rumyra opened on Jan 12, 2026

[BCD] Find-in-page should scroll to revealed matches

Firefox 148

needs BCD updateRequires changes in BCD mdn/browser-compat-dataRequires changes in BCD mdn/browser-compat-data

Status: Open.

Task

#42751 In mdn/content;

· Rumyra opened on Jan 12, 2026