- Naver English Dictionary (Unofficial)- 찾고싶은 영어 단어를 선택하면 네이버 사전 팝업을 띄워줍니다. - 554 users
- Automatic Spelling Language- Automatically changes the dictionary used for spell checking based on the language of text in input fields. - 551 users
- Cambridge English Dictionary- A simple add-on to look up English definitions and pronunciations in Cambridge English Dictionary online. - 550 users
- Accented Letters- It permits just with a single click to copy an accented letter. - 547 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. - 544 users
- Novel Speech- Web小説サイトで音声による小説の読み上げができます - 544 users
- Tap Translate- Add a translate button on the page. Github: https://github.com/miraks/Tap-Translate - 544 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} - 537 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, - 535 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. - 534 users
- Comic Reader with Translator- Comic Reader with Translator - allows you to translate a selected area from a comic into another language. - 518 users
- Overleaf textarea- This plugin displays your text in a textarea so you can use spellcheck plugins like Grammarly. - 507 users
- Text to Speech- Listen voice of text selected in web page; select text and click in context menu to listen voice - 505 users
- ChatGPT-rtl- You can solve the issue of displaying Arabic and Persian texts from right to left on websites such as Chat-gpt, BAI, and poe using this simple and lightweight extension. حل مشکل RTL در ChatGPT - 504 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 - 497 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. - 496 users
- Linguix.com Grammar and Spell Checker- Linguix is the best way to find and eliminate spelling issues in your English texts anywhere on the web. - 475 users
- Definitions.net- Get instant dictionary definitions for any word or term that hits you anywhere on the web! - 474 users
- Multi Subsitles Youtube- Display as many subtitles as you like. Different languages, translated, auto-generated. NO dependence on any third-party server. - 472 users
- Cambridge Dictionary- Look up Cambridge Advanced Learner's Dictionary for the selected text - 470 users
- Chatslator: Livestream Chat Translator- Translates live chat messages in real-time on popular streaming platforms like YouTube, Twitch, and Kick. - 468 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。 - 460 users
- CSV Reader- CSV Reader transforms raw csv data into a simple html table, easily readable in your browser. Find the data you need, fast. - 459 users
- Force l'affichage du bouton traduire du navigateur- Dans les dernières versions du navigateur Firefox, un bouton dans la barre d'adresses permet de traduire une page, mais parfois celui-ci ne s'affiche pas. Ce module permet de forcer l'affichage du bouton de traduction. - 454 users
- toktogi- Toktogi is a popup Korean-English dictionary. Simply hover the mouse in front of a Korean word on a page and a box will pop up with the definition in English. Toktogi is inspired by the Japanese language learning extensions Rikaichan and Rikaikun. - 452 users
























