# DualView Translator

> Dual-view translation: keeps the original visible with the translation right below. Google Translate / DeepL ready, with AI summaries on tap.

Canonical page: [https://chrome-stats.com/d/dualview-translator](https://chrome-stats.com/d/dualview-translator)

## Overview

- **ID:** `dualview-translator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** hirokatsu hibino
- **Category:** language-support
- **Daily users:** 14
- **Weekly downloads:** 1
- **Version:** 1.8.0
- **Last updated:** 2026-06-09
- **First published:** 2026-04-07
- **Size:** 130 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/dualview-translator/)
- **Website:** [https://hirokatsuhibino.github.io/dualview-translator/index.en.html](https://hirokatsuhibino.github.io/dualview-translator/index.en.html)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/dualview-translator/privacy/](https://addons.mozilla.org/firefox/addon/dualview-translator/privacy/)

## Description

Tired of translation tools that swallow the original text? DualView Translator keeps it right there — the translation slides in <strong>right under</strong> the original, so you never lose the context.

Great for language learners, anyone reading foreign articles, or when you just want to double-check what a translator gave you.

■ What you get
<ul><li><strong>Dual-view display</strong> — the translation appears right under the original, no jumping back and forth</li><li><strong>8 translation modes</strong> — pick what fits: a single line, the whole page, just one element, with or without AI summary</li><li><strong>Auto-translation rules</strong> — set up your favorite sites once, and they get translated automatically when you open them</li><li><strong>Translation reset</strong> — undo per element with the × button, or wipe everything in one tap</li><li><strong>Two engines</strong> — Google Translate (free, no setup) or DeepL (sharper translations)</li><li><strong>AI summaries</strong> — Claude or Gemini sums up the translated content in 3–5 lines</li><li><strong>Tabbed popup</strong> — translation actions and settings, neatly separated</li><li><strong>Keyboard shortcuts</strong> — Ctrl+Shift+T, you know the drill</li><li><strong>11 UI languages</strong> — Japanese, English, Chinese (Simplified/Traditional), Korean, French, German, Spanish, Portuguese, Russian, Arabic</li><li><strong>Dark / Light theme</strong> — follows your OS, no fuss</li></ul>
■ The 8 translation modes
<ol><li><strong>Selection translation</strong> — highlight text, the panel pops up</li><li><strong>Full-page translation</strong> — translate the whole page in dual view</li><li><strong>Full-page + AI summary</strong> — translation plus a quick overview</li><li><strong>Element selection translation</strong> — click the element you care about</li><li><strong>Element selection + AI summary</strong> — same, but with a summary</li><li><strong>Right-click translation</strong> — select text, right-click, done</li><li><strong>Element translation (right-click)</strong> — right-click on a block to translate it</li><li><strong>Element translation + AI summary</strong> — same, with a summary</li></ol>
■ The translation bar

Open a foreign-language page and a small bar pops up at the top. One click to "Translate", one click to "Translate &amp; Summarize". That's it.

■ Auto-translation rules

Got a site you read in another language every day? Register it once with a URL pattern, narrow down to the part you care about with a CSS selector (or just click the element to generate one), and you're set. Works with SPAs, dynamic content, even webmail.

■ Dynamic content

Lazy-loaded sections, infinite scroll — they get picked up and translated as they appear. No need to keep clicking "translate" again.

■ Translation engines
<ul><li><strong>Google Translate</strong>: free, no API key, ready to roll (default)</li><li><strong>DeepL</strong>: better quality. Free tier covers 500,000 characters/month</li></ul>
■ AI summaries

Hook up Claude (Anthropic) or Gemini (Google) and get a quick 3–5 line summary of the page you just translated. API key needed for these.

■ Privacy, plain and simple
<ul><li>Your text only goes to the translation engine you picked</li><li>API keys live in your browser's local storage, nowhere else</li><li>No history collection, no tracking, no data goes to us</li></ul>

## Rankings

- #29,231 — Overall
- #243 — summary
- #245 — translations

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `contextMenus`
- `nativeMessaging`

### Host permissions

- `https://translate.googleapis.com/*`
- `https://api-free.deepl.com/*`
- `https://api.deepl.com/*`
- `https://api.anthropic.com/*`
- `https://generativelanguage.googleapis.com/*`

### Content script matches

- `<all_urls>`
- `disqus.com`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/dualview-translator)