# uBlock Origin 1.70.0

- Product: uBlock Origin (https://whatsnew.fyi/product/ublock-origin)
- Vendor: Raymond Hill
- Date: 2026-03-11
- Version: 1.70.0
- Original notes: https://github.com/gorhill/uBlock/releases/tag/1.70.0
- Permalink: https://whatsnew.fyi/product/ublock-origin/releases/1.70.0

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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- **changed** — Improve json-edit-related scriptlets
- **changed** — Improve trusted-create-html scriptlet
- **changed** — Improve prevent-fetch scriptlet
- **fixed** — Fix handling of extraMatch parameter in trusted-click-element scriptlet
- **changed** — Improve generateContentFn helper scriptlet
- **changed** — Improve prevent-xhr scriptlet
- **changed** — Improve proxyApplyFn helper scriptlet

[Commits to master since this release](https://github.com/gorhill/uBlock/compare/1.70.0...master)
[Commits since last release](https://github.com/gorhill/uBlock/compare/1.69.0...1.70.0)

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), MV2 support will be completely removed in [version 139](https://chromiumdash.appspot.com/schedule).
- **Edge**: Install from Microsoft Store: <https://microsoftedge.microsoft.com/addons/detail/odfafepnkmbhccpbejgmiehpchacaeak>
- **Opera**: Install from Opera addons: <https://addons.opera.com/en/extensions/details/ublock/>

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- [Improve `json-edit`-related scriptlets](https://github.com/gorhill/uBlock/commit/98d3e9500a)
- [Improve `trusted-create-html` scriptlet](https://github.com/gorhill/uBlock/commit/baffd32dab)
- [Improve `prevent-fetch` scriptlet](https://github.com/gorhill/uBlock/commit/2ce376cf1d)
- [Fix handling of `extraMatch` parameter in `trusted-click-element` scriptlet](https://github.com/gorhill/uBlock/commit/a8ad95394d)
- [Improve `generateContentFn` helper scriptlet](https://github.com/gorhill/uBlock/commit/7d95c58408)
- [Improve `prevent-xhr` scriptlet](https://github.com/gorhill/uBlock/commit/168394440c)
- [Improve `proxyApplyFn` helper scriptlet](https://github.com/gorhill/uBlock/commit/18a8fc7675)