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Simple Translate

Instantly translate any selected text on web pages.
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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.
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Privacy & Security extensions
Privacy & Security extensions
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Tab managers
Tab managers
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Spotlight: Adaptive Tab Bar Color
Spotlight: Adaptive Tab Bar Color
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Extension starter pack
  • Privacy Badger

    Privacy Badger

    Automatically learns to block invisible trackers.

    1 575 579 users

  • Enhancer for YouTube™

    Enhancer for YouTube™

    Take control of YouTube and boost your user experience!

    677 307 users

  • Grammar and Spell Checker - LanguageTool

    Grammar and Spell Checker - LanguageTool

    With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.

    409 258 users

  • Search by Image

    Search by Image

    A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.

    381 944 users

Creativity extensions
  • LeechBlock NG

    LeechBlock NG

    LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

    89 164 users

  • Grammar and Spell Checker - LanguageTool

    Grammar and Spell Checker - LanguageTool

    With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.

    409 258 users

  • Search by Image

    Search by Image

    A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.

    381 944 users

  • Dictionary Anywhere

    Dictionary Anywhere

    View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!.

    46 581 users

Steam enhancers
  • SteamDB

    SteamDB

    Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.

    62 179 users

  • Augmented Steam

    Augmented Steam

    Augments your Steam Experience

    60 240 users

  • Steam URL Opener

    Steam URL Opener

    Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).

    5 428 users

  • ProtonDB for Steam

    ProtonDB for Steam

    Shows ratings from protondb.com on Steam

    3 471 users

“scholar” tagged extensions
  • Web Archives

    Web Archives

    View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.

    66 186 users

  • Google Scholar Button

    Google Scholar Button

    Lookup scholarly articles as you browse the web.

    116 574 users

  • Unpaywall

    Unpaywall

    Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.

    71 763 users

  • Pix Companion

    Pix Companion

    Browser extension for Pix

    24 646 users