To use these add-ons, you'll need to download Firefox.

Log in

4,530 extensions found in Language Support

Filter results
Search results
  • Smart Office Tools - PDF, Excel

    Smart Office Tools - PDF, Excel

    Quick access to free PDF & Excel tools. Convert, merge, compress PDFs. Beautify Excel tables. All tools work in your browser.

    qpweb31

    22 users

  • Chat GPT Sidebar Chat with all AI Claude, ChatGPT

    Chat GPT Sidebar Chat with all AI Claude, ChatGPT

    Chat GPT Sidebar is your all-in-one AI Firefox Add-on sidebar for Claude, ChatGPT, Gemini, Grok, Deepseek. Chat with all AI.

    GPT Sidebar

    22 users

  • Focuser

    Focuser

    Set the focus on search boxes without using the mouse, just pressing Esc key

    porkopek

    22 users

  • Progressive Immersion

    Progressive Immersion

    A browser extension that progressively immerses you in a language. Using Google Translate we translate frequent words in sites you read to a language you want to learn!

    Aidan Welch

    22 users

  • Lexios

    Lexios

    Learn vocabulary effortlessly while browsing the web. Better results than vocabulary tables. Translating words from context and using spaced repetition. Based on your level, from A1 to C1.

    Nicolas

    22 users

  • Simple Translate (popup fix)

    Simple Translate (popup fix)

    Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.

    Symbian

    22 users

  • 眺览 TillGlance

    眺览 TillGlance

    一目十行的阅读模式

    tillglance

    22 users

  • Longman

    Longman

    Search selection text on longman web.

    naturallucky

    22 users

  • Code Formatter

    Code Formatter

    Beautify code instantly in Firefox. No more minified CSS, compressed JSON, or unreadable source code—this extension automatically detects and formats it all with syntax highlighting.

    sparkle_64

    22 users

  • DictZone német magyar szótár

    DictZone német magyar szótár

    1. Jelöld ki a nem ismert szót az oldalon. 2. Kattints a jobb egérgombbal a kijelölt szón (helyérzékeny menü előhozása). 3. Kattints a bal egérgombbal a "Keresés a DictZone Német-Magyar szótárban: ..." keresésednek megfelelő menüpontján.

    Luti

    21 users

  • msdn-delocalizer

    msdn-delocalizer

    Browser extension to force de-localization of Microsoft documentation pages

    Friedrich von Never

    21 users

  • MDN Language Redirector

    MDN Language Redirector

    Browse MDN in your preferred language.

    Timon van Spronsen

    21 users

  • Simple Notes Eng/Rus

    Simple Notes Eng/Rus

    A simple note-taking plugin with local storage.

    Forestier

    21 users

  • Offline Translation

    Offline Translation

    Enables offline translation capabilities.

    Berger

    21 users

  • 遇见单词 MetWord

    遇见单词 MetWord

    遇见单词是一个划词翻译扩展，标记你不认识的单词，在下次遇见时获得提醒。

    Jian Li

    21 users

  • Grafana k6 Browser Plus

    Grafana k6 Browser Plus

    Record k6 scripts right from the browser with the ability to automatically upload them to Grafana Cloud.

    Win79

    21 users

  • jp343 Track Your Japanese Immersion

    jp343 Track Your Japanese Immersion

    Tracks your Japanese immersion time automatically. Sessions are saved locally and can be synced to your account.

    jp343

    21 users

  • TapWord Translator

    TapWord Translator

    Embeds translations below the original text for an immersive, bilingual subtitle-like reading experience. 将翻译嵌入原文下面，带来双语字幕般的沉浸式阅读体验

    hongyuan

    21 users

  • Traductor Mobile.de Español

    Traductor Mobile.de Español

    Traduce la descripción de los vehículos de la web mobile.de al español, independientemente del idioma en el que estén escritos.

    Biohazard_86

    21 users

  • JJWXC Traductor Español

    JJWXC Traductor Español

    Capa de traducciones comunitarias para JJWXC. Lee capítulos en español gracias a fans traductores.

    milkybananyan

    21 users

  • RomanizeMe - Global Language Transliterator

    RomanizeMe - Global Language Transliterator

    A browser extension designed for language enthusiasts, providing romanization for non-Latin scripts.

    Jeff H

    21 users

  • New TongWenTang

    New TongWenTang

    Convert characters between Chinese Simplified and Chinese Traditional

    s816266

    21 users

  • DoctorSense

    DoctorSense

    Single purpose: To convert a doctor’s spoken voice into structured medical text using AI, enabling faster and more accurate clinical documentation inside the browser.

    Nano Health Suite

    21 users

  • SmartClip

    SmartClip

    SmartClip is a smart web clipper that saves content to note apps and uses AI for intelligent reading and organization.

    麦可

    21 users

  • Sanakirjaorg

    Sanakirjaorg

    Translate text selection from Finnish to English (or vice versa) on sanakirja.org.

    Kalle Nahkala

    21 users