v0.3.0 — Codex Browser Translator preview

Known unresolved issue / 已知未解决问题（2026-10-31）： In the reported Windows Codex environment, restarting Codex can remove the unpacked extension from its installed list. It must be loaded again; there is no verified persistence fix. 重启后扩展可能消失，需要手动重新加载，目前尚未解决。Do not use CRX drag-and-drop; whole-app exits were reported. This older preview is superseded by v1.0.0-rc.4, which also retains this limitation. Current known issue.

Codex Browser Translator v0.3.0 — early preview

Read English webpages in Chinese inside the Codex desktop app's built-in browser. This independent community extension uses the browser's native Translator API and supports toolbar/context-menu startup, paragraph bilingual view, translation-only view, and restoration of the original page.

Install without a build

1. Download codex-browser-translator-v0.3.0.zip below and extract it to a folder you will keep.
2. Open the Codex browser's extension manager, enable Developer mode, and select Load unpacked.
3. Select the extracted extension/ folder (the one containing manifest.json).
4. Open a normal English HTTPS webpage and click 网页翻译, or right-click and choose 双语翻译此页. If requested, click 重试 in the page panel.

No API key, Node.js, local server, agent prompt, or full CDP access is needed for normal use. The browser may download language packs on first use. The current direction is English → Simplified Chinese; controls are in Chinese.

English README · 中文说明 · Detailed installation

中文快速使用

下载下面的扩展 ZIP 并完整解压，在 Codex 内置浏览器的扩展管理页开启开发者模式，选择“加载未打包的扩展程序”，选中包内的 extension/ 文件夹。打开英文 HTTPS 网页，点击“网页翻译”图标或右键“双语翻译此页”即可使用。首次可能需要下载语言包，若提示页面操作，请点击“重试”。

无需 API Key、本地服务或对话指令。保留解压目录；更新后重新加载扩展并刷新网页。

Scope

• Windows Codex loading, translation entry and right-click startup confirmed by the tester.
• 35 automated tests and separate native-page runtime, restoration, and narrow-panel checks passed before publication. Validation details.
• English → Simplified Chinese only. Browser API and language-pack availability vary by host.
• Translation-only paragraphs hide original links/inline-code styling; switch to bilingual/original to use those links. Standalone code blocks stay visible.
• Limited extraction size; PDFs, cross-origin frames, complex SPA behavior and arbitrary-site coverage are not established.

SHA256SUMS contains the extension ZIP's SHA-256 checksum. This release is marked as a prerelease because host and website compatibility are still being expanded.

If it helps you, a Star and a reproducible issue report are welcome. MIT licensed; not an official OpenAI product.