# Duo Translator - Translation & writing assistant > Supports webpage translation, selected text translation, writing enhancement, and more. Canonical page: [https://chrome-stats.com/d/duo-translator](https://chrome-stats.com/d/duo-translator) ## Overview - **ID:** `duo-translator` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** linuxscreen - **Category:** language-support,social-communication - **Daily users:** 18 - **Weekly downloads:** 4 - **Version:** 2.2.5 - **Last updated:** 2026-09-01 - **First published:** 2026-07-14 - **Size:** 2.15 MB - **Data as of:** 2026-09-07 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/duo-translator/) - **Website:** [https://duotranslator.com](https://duotranslator.com/) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/duo-translator/privacy/](https://addons.mozilla.org/firefox/addon/duo-translator/privacy/) ## Description An AI-powered translation and writing assistant. Supports webpage translation, selected text translation, writing enhancement, and more. Helps you access information more easily and break down language barriers. 💡 How to Start: Click the extension icon to open the popup. You can pin the extension for quick access. 💻 Features: 🎯 Webpage Translation:
  1. Bilingual layout by default, helping you better understand the original content and improve your reading experience.
  2. Quickly translate and restore pages with the floating ball, keyboard shortcuts, or context menu.
  3. Detects the page language and translates it automatically.
  4. Customize the translation style, including background color, text color, border style, and border color.
🌟 Bilingual Highlighting:
  1. Highlights the original and translation sentence by sentence, helping you better understand long-form content and quickly identify complex, difficult, or mistranslated sentences.
  2. Simply hover over the original text or translation to trigger it.
  3. Customize the highlight style, including border style, border color, background color, and text color.
📌 Paragraph and Selection Translation:
  1. Quickly translate any paragraph without manually selecting the entire text.
  2. Selected Text Translation lets you listen to and quickly copy both the original text and the translation.
  3. Trigger it with a double-tap of Ctrl or Alt, a keyboard shortcut, or the context menu.
📝 AI Writing:
  1. Correct grammar, polish, translate, and more directly in input box.
  2. Enable whitelist mode to run it only on the websites you need.
  3. Open the dedicated AI workbench to edit long-form text and review the output more easily.
📹 Video Subtitles 1. YouTube bilingual subtitles. 2. Customize subtitle style. 📦 Multiple Translation and AI Service Integrations:
  1. Built-in translation services include Microsoft, Google, and DeepL.
  2. Supports OpenAI, DeepSeek, Gemini, OpenRouter, Claude, Ollama, and custom AI providers.
🔍 Others:
  1. Sync your settings with WebDAV, or import and export them as local files.
  2. Privacy first. Duo Translator is free, open-source, and never collects your personal data.
  3. Website translation rules: Per-site translate areas, no-translate areas and custom CSS.
🏅 Future Development: More features are under development. If you have a good idea, please contact me. If you're interested in this project, feel free to become a contributor. 🚀 Support: If you encounter any issues during use, please submit an issue on GitHub (https://github.com/linuxscreen/duo-translator) or contact us by email (support@duotranslator.com). ## Rankings - #25,864 — Overall - #16 — writing - #18 — writing tool - #22 — ai writing tool - #26 — ai writing - #45 — translations ## Permissions and access ### Permissions - `storage` - `tabs` - `activeTab` - `contextMenus` - `alarms` - `webNavigation` - `identity` ### Host permissions - `https://www.googleapis.com/*` - `https://translate.google.com/*` - `https://www.bing.com/*` ### Content script matches - `*` - `www.youtube.com` ## Safety - **Risk impact:** Very high risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern. - This extension was recently updated in the past month. New updates may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [DeepL: AI translator and writing assistant](https://chrome-stats.com/d/deepl-translate) — 162,622 users, 4.16 / 5 - [Pair Translate](https://chrome-stats.com/d/pair-translate) — 34 users, 5.00 / 5 - [Smart Translator](https://chrome-stats.com/d/smart-translator-pos) - [Definer: Word Translator, Ask AI, Popup Dictionary](https://chrome-stats.com/d/lumetrium-definer) — 3,667 users, 4.59 / 5 - [SwiftIn — AI translator](https://chrome-stats.com/d/swiftin-global-ai-translator) — 61 users - [Immersive Translate Ultra](https://chrome-stats.com/d/immersive-translate-beta) — 2,167 users, 3.98 / 5 - [Smart Translator: Easy one click translations](https://chrome-stats.com/d/smart-translator-one-click) — 127 users, 3.00 / 5 - [Translator - translation of selected text](https://chrome-stats.com/d/translater-gt) — 298 users, 5.00 / 5 - [DualView Translator](https://chrome-stats.com/d/dualview-translator) — 14 users - [Anylang Translator](https://chrome-stats.com/d/anylang-translator) — 1 users - [XTranslate](https://chrome-stats.com/d/xtranslate-chrome) — 332 users, 4.00 / 5 - [Bilingual Page Translator](https://chrome-stats.com/d/bilingual-page-translator) — 2 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/duo-translator)