HoverTranslate - YouTube Subtitle Translator Firefox

HoverTranslate - YouTube Subtitle Translator

By: Kozii
Build vocabulary while watching YouTube! Instantly translate words in subtitles by hovering. Perfect for language learners.

Features & Capabilities

HoverTranslate turns YouTube into a language-learning tool. Hover over any subtitle word to see translations instantly, automatically pausing the video to give you time to learn, and building your vocabulary as you watch.

With 190+ language support, auto language detection, multiple translation engines, phrase translation, a personal dictionary export (JSON/CSV), and open-source community-driven development, HoverTranslate makes mastering new languages natural and seamless.

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:
Kozii
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/hovertranslate/
Email:
ho*****@gmail.com

User Reviews

It doesn't workt well. When I open new tab, extension didn't work. I must change any settings on settings to work it(For each time). In addition, there is one deficiency for my usage. It needs to have translation from English to English. I want to see English definition when I hover the word. Chrome has this kind of extensions but I want to use Firefox.
by Er*****, 2026-06-29

English: I am absolutely blown away! 🔥 I was already loving this extension, but then I realized it's Open Source—that is a massive win for privacy and trust! And get this: I just discovered that if you hold the Shift key, you can select and translate entire sentences, not just single words! This completely changes the game for understanding complex content. It feels so much like a native YouTube feature because the fonts and style match perfectly. Being able to switch between Google and Bing is super handy, and the instant pause/translation with zero lag is just seamless. I tested it with Russian, and everything works flawlessly. A total must-have! Русский: Я просто в шоке! 🔥 Я уже был в восторге от расширения, но когда узнал, что это Open Source — это вообще разрыв! Полная прозрачность и доверие. И самое мощное: я только что обнаружил, что если зажать Shift, можно выделять и переводить целые предложения, а не только отдельные слова! Это полностью меняет подход к просмотру сложных видео. Ощущается как родная фича YouTube, потому что шрифты и стиль совпадают идеально. Переключение между Google и Bing — супер удобно, а мгновенная пауза и перевод без всяких задержек — это просто космос. Проверил на русском — всё работает четко и естественно. Это просто маст-хэв! *** English: Huge thanks to Kozii for this incredible work! Making it open source and adding such smart, seamless features is legendary. You've created something truly special for the community. Keep it up! 🙌 Русский: Огромное спасибо разработчику Kozii за такую крутую работу! То, что проект открытый и с такими продуманными, умными фишками — это просто легендарно. Ты создал что-то по-настоящему особенное для сообщества. Продолжай в том же духе! 🙌
by Fi*****, 2026-06-28

é completamente perfeito para se aprender um novo idioma, seja reading ou listening, its perfect, estou atualmente aprendendo francês e simplesmente consigo aprender francês vendo os mesmos videos que eu ja via antes
by Le*****, 2026-06-16
View all user reviews ›

Is HoverTranslate - YouTube Subtitle Translator 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.

HoverTranslate - YouTube Subtitle Translator requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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.

HoverTranslate - YouTube Subtitle Translator is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best HoverTranslate - YouTube Subtitle Translator Alternatives

Here are some Firefox add-ons that are similar to HoverTranslate - YouTube Subtitle Translator: