SelectTranslate - Translate Web, PDF & Videos Firefox

SelectTranslate - Translate Web, PDF & Videos

Free AI translator for bilingual Web, PDF, papers, video, meetings, images & ebooks. 20+ top models (GPT, DeepSeek).

Features & Capabilities

🎉 【AI Expert】 and 【Termbase】 are now live! Built-in popular experts and termbases are ready to use, and custom experts and terms are also supported, making translation for specialized domains more accurate and professional!👍👍👍

🌐 Bilingual Webpage Translation: Intelligently identifies and translates webpage content, displaying the translation beneath each original paragraph for a clean, seamless bilingual reading experience. Enjoy barrier‑free access to global knowledge.

📕 PDF Translation: (1) Completely free PDF translation function, offers rapid translation of foreign language documents while preserving the original document format and layout. It features bilingual side-by-side translation to meet your daily PDF document translation and reading needs. (2) PDF Plus - The advanced PDF translation function is designed specifically for translating academic papers and various professional PDF documents. Utilizing advanced multimodal AI + OCR vision processing technology, it accurately recognizing text, formulas, images, tables, and scanned documents, effectively solving the problems of inaccurate recognition and layout disorder.

📖 ePub e-book translation: With SelectTranslate, you can easily convert various foreign language ePub eBooks into bilingual versions, which are perfectly compatible with various e-book readers such as Kindle, helping you break down language barriers and enjoy high-quality global literary resources.

📚 More Document Translation Features: Also supports translating Word, TXT, HTML, Markdown, and subtitle files (SRT/ASS).

📺 Video Subtitle Translation: Supports bilingual subtitle translation on major global streaming platforms such as YouTube, Netflix, Disney+, and TED. The AI Subtitle feature enables instant translation even for videos without subtitles.

👩‍💻 Online Meeting Translation: Supports real-time translation for Zoom, Microsoft Teams, and Google Meet online meetings (voice subtitle translation, chat message translation, chat input translation), making cross-language communication smoother and more efficient.

🥇 Optimal Translation: An industry‑first approach that runs multiple translation models in parallel and uses a scoring model to intelligently score the outputs and automatically select the best translation, significantly improving both accuracy and reliability. ✅

💥 Comic Translation: Deeply adapted for selected comic websites, breaking language barriers with intelligent recognition and in-place translation for a smoother reading experience!

🏞️ Image Translation: Supports quick translation of webpage images by right-click or hover, with the translated text fitted in place so reading stays uninterrupted. Local image upload translation is also supported, making multilingual image reading much easier.

⌨️ Input Translation: Simply type text into webpage input fields for quick translation. Works seamlessly across Google, Reddit, Twitter, Discord, and many other online input scenarios, significantly improving cross‑language communication and writing efficiency.

🆃 Selection Translation: Simply highlight words or text to translate, giving you a convenient and lightweight translation experience. Word translation: part of speech, phonetic symbols, pronunciation, example sentences, comprehensive learning. Provide detailed translation explanations based on the word’s contextual usage.

🖱️ Hover Translation: Hover your mouse over a webpage paragraph, press the shortcut key, and the translation will appear below the original text. On-demand translation and bilingual comparison make foreign language learning more flexible and effective.

👩‍🎓 AI Expert: AI translation prompts tailored for different domains, with dedicated roles and translation rules that make specialized content more accurate and professional.

🗂️ Termbase: Stores and manages standard translations of specialized terms across different scenarios to keep terminology accurate and consistent.

🪩 20+ Integrated Translation Services/Models: GPT, Gemini, DeepSeek, Google Translate, and more.

📩 Service & Support: If you encounter any issues or have suggestions during use, feel free to contact us via our service email. Email: service@selecttranslate.com

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
SelectTranslate
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/selecttranslate/
Email:
se*****@selecttranslate.com
Website:
https://selecttranslate.com/

Permission Change History

2026-04-11: Version 2.5.2 → 2.5.3
Remove Permissions: cookies
2026-03-17: Version 2.4.6 → 2.5.1
Remove Host permissions: <all_urls>
Add Permissions: <all_urls>
Remove Permissions: webNavigation

User Reviews

An absolute hidden gem! > The interface looks sleek and minimal, and the translation features are super powerful and intuitive. It offers exactly what I need without any unnecessary clutter. It’s become an essential part of my browsing routine.
by Fi*****, 2026-06-12

by Fi*****, 2026-05-17

The extension works really well, but I’d love to see a dark mode added to the interface.
by *****, 2026-05-13
View all user reviews ›

Is SelectTranslate - Translate Web, PDF & Videos Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

SelectTranslate - Translate Web, PDF & Videos requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

SelectTranslate - Translate Web, PDF & Videos is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
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