TranslateLocally for Firefox

TranslateLocally for Firefox

TranslateLocally for Firefox is a webextension that enables local and private in-page translations for web browsers. It is a stand-alone extension, but can integrate with TranslateLocally for custom models and even better performance.

TranslateLocally for Firefox promo image
What is TranslateLocally for Firefox?

TranslateLocally for Firefox is a webextension that allows for local and private in-page translations within web browsers. It does not rely on the cloud, ensuring your text never leaves your device. It provides fast translation even with bad or no internet connection.

Users: 425 ▼ -3
Rating: 4.50 (12)
Version: 0.8.2 (Last updated: 2022-11-24)
Creation date: 2022-10-03
Weekly download count: 13
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • <all_urls>
  • contextMenus
  • tabs
  • storage
  • nativeMessaging
Size: 2.43M
URLs: Website
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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TranslateLocally brings state-of-the-art machine translation to your own, private device. Unlike other translators, it does not rely on the cloud. Your text never leaves your device. And it also works just as fast when you have a bad or no connection to the internet.


  • Translate all text on a website (including highly dynamic sites like Youtube, Twitter)
  • Translate selected text only (Select text and right-click "Translate selection")
  • Help you translate text in forms (Right-click a form field and click "Type to translate…")
Supported languages:
  • Bulgarian
  • Czech
  • English
  • Estonian
  • French
  • Spanish
  • German
  • Icelandic (only from)
  • Norwegian (only from)
  • Polish
Support for more languages will come once the HPLT project gets underway.

This extension for Firefox integrates the features of TranslateLocally in your browser. It works without the TranslateLocally desktop application but if you have it installed TranslateLocally for Firefox will work even faster and share the translation language models with the desktop app.

TranslateLocally is one of the products to come out of the Bergamot project. The Bergamot Project Consortium is coordinated by the University of Edinburgh with partners Charles University in Prague, the University of Sheffield, University of Tartu, and Mozilla. This project has received funding from the 🇪🇺 European Union’s Horizon 2020 research and innovation programme under grant agreement No 825303.

User reviews
by Kirito, 2024-01-12
View all user reviews
Risk impact

TranslateLocally for Firefox is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install TranslateLocally for Firefox if you trust the publisher.

Risk likelihood

TranslateLocally for Firefox has earned a fairly good reputation and likely can be trusted.

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