Issues

• Enhance stealth about Object.prototype.hasOwnProperty.call of XMLHttpRequest related scriptlets

  uBlockOrigin/uBlock-issues#4089 · Filter by author piquark6046 opened on Aug 20, 2026
  2

• Add CDN URLs for regional lists that failed to sync during the 2026-08-17 GitHub outage.

  uBlockOrigin/uBlock-issues#4087 · Filter by author DandelionSprout opened on Aug 17, 2026
  1

• addEventListener-defuser.js does not work

  uBlockOrigin/uBlock-issues#4085 · Filter by author ghajini opened on Aug 17, 2026
  5

• DOM Inspector can not disable generic filters, even though they are saved in the ‘My filters’ tab

  uBlockOrigin/uBlock-issues#4082 · Filter by author krystian3w opened on Aug 12, 2026

• CSS @media (scripting) rule not honoured when scripting is disabled.

  uBlockOrigin/uBlock-issues#4077 · Filter by author nomakwae opened on Aug 5, 2026
  5

• Support prevent-constructor scriptlet

  uBlockOrigin/uBlock-issues#4013 · Filter by author piquark6046 opened on May 26, 2026
  1

• Handle Element.prototype.getClientRects in spoof-css scriptlet

  uBlockOrigin/uBlock-issues#4011 · Filter by author piquark6046 opened on May 23, 2026
  1

• number of filters reduce in custom filters if ublock filters is updated

  uBlockOrigin/uBlock-issues#3997 · Filter by author BlazeFTL opened on May 2, 2026
  7

• Conflict with Gboard on Firefox for Android: selecting a suggestion appends text instead of replacing it

  uBlockOrigin/uBlock-issues#3990 · Filter by author tempRoberto opened on Apr 28, 2026
  1

• addEventListener-defuser.js

  uBlockOrigin/uBlock-issues#3970 · Filter by author ghajini opened on Mar 29, 2026
  3

• New tabs are automatically closed after opening a URL with no-popups: true

  uBlockOrigin/uBlock-issues#3945 · Filter by author Vanerio opened on Feb 20, 2026
  6

• Managed hiddenSettings lost in exported backup

  uBlockOrigin/uBlock-issues#3940 · Filter by author usfbih8u opened on Feb 12, 2026
  2

• docs.google.com: element picker/zapper causes error popup

  unable to reproduce
  uBlockOrigin/uBlock-issues#3897 · Filter by author vrad-exe opened on Dec 10, 2025
  7

• google-ima.js causes leftover with error on tver.jp (Chromium only)

  uBlockOrigin/uBlock-issues#3883 · Filter by author Yuki2718 opened on Nov 29, 2025
  15

• Element Picker & container-type

  uBlockOrigin/uBlock-issues#3873 · Filter by author dimisa-RUAdList opened on Nov 21, 2025
  6

• My rules have different sort order in firefox and chromium

  uBlockOrigin/uBlock-issues#3870 · Filter by author shell-surfer opened on Nov 18, 2025
  2

• Click2load initiated frame makes request without "Referrer" param; breaks certain embeds

  uBlockOrigin/uBlock-issues#3868 · Filter by author tyaremco opened on Nov 16, 2025
  5

• "Update now" also applies changes

  uBlockOrigin/uBlock-issues#3837 · Filter by author agowa opened on Oct 21, 2025
  1

• Thunderbird in Assets?

  uBlockOrigin/uBlock-issues#3802 · Filter by author rcalixte opened on Sep 16, 2025
  8

• Support [=] and {=} token in json-prune series like AdGuard

  enhancement
  uBlockOrigin/uBlock-issues#3787 · Filter by author piquark6046 opened on Sep 5, 2025
  19

• Use CookieStore API instead of accessing document.cookie if supported

  enhancement
  uBlockOrigin/uBlock-issues#3786 · Filter by author piquark6046 opened on Sep 5, 2025
  3

• prevent-canvas scriptlet can be bypassed with OffScreenCanvas

  enhancement
  uBlockOrigin/uBlock-issues#3748 · Filter by author celenityy opened on Aug 10, 2025
  1

• webrtc scriptlets don't cover all cases

  enhancement
  uBlockOrigin/uBlock-issues#3744 · Filter by author ambyjkl opened on Aug 8, 2025
  4

• no-large-media causes an infinite loop + heavy CPU & RAM drain

  uBlockOrigin/uBlock-issues#3724 · Filter by author freezer2022 opened on Jul 20, 2025

• Update manifest for Thunderbird 128+ so contentTab types display the uBlock toolbarbutton

  uBlockOrigin/uBlock-issues#3636 · Filter by author alta88 opened on May 13, 2025
  2