# uBlock Origin 1.74.0

- Product: uBlock Origin (https://whatsnew.fyi/product/ublock-origin)
- Vendor: Raymond Hill
- Date: 2026-08-25
- Version: 1.74.0
- Original notes: https://github.com/gorhill/uBlock/releases/tag/1.74.0
- Permalink: https://whatsnew.fyi/product/ublock-origin/releases/1.74.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **security** — Fix possible injection of scriptlets requiring trust from non-trusted sources
- **added** — Import google-ima-dai shim from AdGuard shims
- **changed** — Replace List-KR with filterslists-KO
- **removed** — Remove support for cap_user_stylesheet
- **changed** — Improve scriptlets framework
- **added** — Add env_brave preparser token
- **added** — Add set/unset/given cookie values
- **added** — Add procedural operator content(...) to lookup elements inside template tags
- **changed** — Improve prevent-clipboard-write scriptlet
- **changed** — Improve json-edit scriptlet
- **changed** — Revisit scriptlets' getExtraArgs implementation

[Commits to master since this release](https://github.com/gorhill/uBlock/compare/1.74.0...master)
[Commits since last release](https://github.com/gorhill/uBlock/compare/1.73.0...1.74.0)

To install the stable build:

- **Firefox**: Install from AMO: <https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/>
    [uBO works best on Firefox](https://github.com/gorhill/uBlock/wiki/uBlock-Origin-works-best-on-Firefox)
- **Chromium**: Install from the Chrome store: <https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm>
    - [About Google Chrome's "This extension may soon no longer be supported"](https://github.com/gorhill/uBlock/wiki/About-Google-Chrome's-%E2%80%9CThis-extension-may-soon-no-longer-be-supported%E2%80%9D)
    - As per [latest update from Google Chrome](https://developer.chrome.com/docs/extensions/develop/migrate/mv2-deprecation-timeline), "Aug 31st 2026: All remaining Manifest V2 extensions removed from the Chrome Web Store"
- **Edge**: Review pending <!-- Install from Microsoft Store: <https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak> -->
- **Opera**: Submission pending <!-- Install from Opera addons: <https://addons.opera.com/en/extensions/details/ublock/> -->

---

- [Fix possible injection of scriptlets requiring trust from non-trusted sources](https://github.com/gorhill/uBlock/commit/a46d5c8e75)
- [Import `google-ima-dai` shim from AdGuard shims](https://github.com/gorhill/uBlock/commit/933efff4dd)
- [Replace List-KR with filterslists-KO](https://github.com/gorhill/uBlock/commit/20d3c5b9d0)
- [Remove support for `cap_user_stylesheet`](https://github.com/gorhill/uBlock/commit/fb09b0947d)
- [Improve scriptlets framework](https://github.com/gorhill/uBlock/commit/57ade5f484)
- [Add `env_brave` preparser token](https://github.com/gorhill/uBlock/commit/0c56103a40) (by @ryanbr)
- [Add set/unset/given cookie values](https://github.com/gorhill/uBlock/commit/a796fd7daf) (by @ryanbr)
- [Add procedural operator `content(...)`, to lookup elements inside `template` tags](https://github.com/gorhill/uBlock/commit/25d413803d)
- [Improve `prevent-clipboard-write` scriptlet](https://github.com/gorhill/uBlock/commit/8a85e04907)
- [Improve `json-edit` scriptlet](https://github.com/gorhill/uBlock/commit/0fdbfdb2b5)
- [Revisit scriptlets' `getExtraArgs` implementation](https://github.com/gorhill/uBlock/commit/505fbc7a75)