Simple Google Translate
A very simple add-on that opens the English Google Translate for the current page
598 users
OCR + Translate
Open source addon + server (see description) combo to run OCR + translations of images on browser page. Uses freely available models and can run totally offline
592 users
Automatic Spelling Language
Automatically changes the dictionary used for spell checking based on the language of text in input fields.
581 users
一字幕 - 视频字幕插件 | 电影字幕 | 免费
一款免费的支持双语的音频、视频字幕的辅助插件。可按单词，短语，整句翻译；支持(YouTube，Bilibili ,百度网盘等平台)；亦可支持本地外挂字幕和内嵌字幕。可变速、重复播放、跟读、画面遮挡。
581 users
Cambridge English Dictionary
A simple add-on to look up English definitions and pronunciations in Cambridge English Dictionary online.
570 users
TransorAI - AI Translator | Web, PDF, Images
Free AI translator for web pages, YouTube/Netflix subtitles, PDFs & images. Real-time bilingual translation tool.
569 users
Google Translate Search Plugin
Translate the specified text. Since the source and destination language of translation are not specified as follows, this can be used for all languages. https://translate.google.com/?text={searchTerms}
566 users
Forces the display of the browser's translate butt
In recent versions of the Firefox browser, a button in the address bar allows you to translate a page, but sometimes it doesn't appear. This extension forces the translation button to be displayed.
564 users
Overleaf textarea
This plugin displays your text in a textarea so you can use spellcheck plugins like Grammarly.
549 users
TextFast
Have you ever felt it took too much work to type out long words or sentences? Or do you just desire to make shorthand macros for often-used words or even entire sentences? TextFast can make shorthand macros for words, sentences, or any text you want,
547 users
Google Input Tools for Firefox
Transliteration, virtual keyboard, and handwriting input for 90+ languages in Firefox.
544 users
YouTube Auto Dub Disabler
UPDATED JAN 15, 2026 Automatically opens the settings menu and switches to the original language audio track on YouTube.
532 users
Mouse Tooltip Translator
It translates the text that your mouse cursor is hovering over. It offers additional features such as TTS, OCR manga translation, and YouTube dual subtitles. Please note that the PDF translation feature does not work in the Firefox version.
530 users
Text to Speech
Listen voice of text selected in web page; select text and click in context menu to listen voice
506 users
TWP - Translate Web Pages (Custom)
Translate your page in real time using Google or Yandex. This extension is a fork of TWP - Translate Web Pages.
492 users
Comic Reader with Translator
Comic Reader with Translator - allows you to translate a selected area from a comic into another language.
491 users
Tap Translate
Add a translate button on the page. Github: https://github.com/miraks/Tap-Translate
489 users
Language Transliteration
This add-on allows you to type in your own language. Tamil, Malayalam, Telugu, Kannada, Hindi, Bengali, Marathi, Gujarati, Urdu, Punjabi and more.
487 users
Scribe YouTube Transcripts
Instantly view beautifully formatted YouTube transcripts with punctuations, paragraphs and chapters.
487 users
HoverTranslate - YouTube Subtitle Translator
Build vocabulary while watching YouTube! Instantly translate words in subtitles by hovering. Perfect for language learners.
481 users
