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

Log in

10,330 extensions found in Appearance

Filter results
Search results
  • YouStopper for YouTube™

    YouStopper for YouTube™

    Prevents YouTube™ videos from starting to play automatically when you open them. Doesn't affect ads so it's better to use together with an Ad-Blocking extension like uBlock Origin. Doesn't stop autoplaying in playlists.

    YouStopper Developer

    72 users

  • npmhub

    npmhub

    Explore npm dependencies on GitHub repos

    Fregante

    72 users

  • defaultSortForReddit

    defaultSortForReddit

    This add-on will allow Reddit users to select which option they want to use to sort content when going to the home page, or individual subreddits. By default, it will sort to the "new" option. Designed to work with reddit.com, not old reddit.

    DefaultSortForReddit

    72 users

  • Office Web

    Office Web

    Displays online office documents in the browser (.doc*, .ppt*, .xls*, .odt)

    Houbo

    72 users

  • r/anime Enhanced

    r/anime Enhanced

    Add functionalities to r/anime and r/manga

    Firefox user 14113747

    72 users

  • Gender Simplifier

    Gender Simplifier

    An addon that removes german gender forms for better readability.

    Compaszer

    72 users

  • AiHome新标签页-AI上网助手

    AiHome新标签页-AI上网助手

    AI助手集成GPT-4和DeepSeek，随时随地进行高级 AI 搜索、阅读、写作和办公，提升工作效率。

    AiHomeTab

    71 users

  • DailyFlip - Flip DailyMotion, YouTube, & TikTok

    DailyFlip - Flip DailyMotion, YouTube, & TikTok

    This dyslexia-friendly tool allows users to easily flip the current video as they see fit. This tool currently works in YouTube, DailyMotion and TikTok.

    JollyByte

    71 users

  • BetterVLR

    BetterVLR

    VLR.GG but better

    myhiy

    71 users

  • Darker Background Brighter Font

    Darker Background Brighter Font

    Change every web page style, darken background color and brighten font color, prevent users see high brightness web page.

    zero0evolution

    71 users

  • Default links not to be underlined

    Default links not to be underlined

    Restores non-underlined hyperlinks by default (setting text-decoration: none).

    Emilio Cobos Álvarez

    71 users

  • Polito.it Utility

    Polito.it Utility

    This extension adds special features and allows you to simultaneously download multiple files/video on [didattica.polito.it]

    Totosoft

    71 users

  • Simple New Tab

    Simple New Tab

    Just a search box with a random nature background

    Firefox user 14616694

    71 users

  • NPM Package Search

    NPM Package Search

    To use, type 'npm' plus your search term into the url bar.

    Bryan Clark

    71 users

  • nicoExpansion

    nicoExpansion

    ニコニコの利用を補助する拡張機能です

    njmono3

    71 users

  • Hide Collection-Only Button for eBay

    Hide Collection-Only Button for eBay

    Adds a button to hide Collection-Only items on eBay.

    Makeshift

    71 users

  • Get the bird back

    Get the bird back

    Get twitter bird back

    YuYutw123

    71 users

  • Media Tools - Convert, Split & Extract

    Media Tools - Convert, Split & Extract

    Manipulate media files (video & audio) via FFmpeg commands right in your browser.

    Sevina

    71 users

  • Legacy CurseForge Redirect

    Legacy CurseForge Redirect

    Ensure CurseForge always loads the legacy design

    Siriusmart

    71 users

  • Gmail Row Highlighter

    Gmail Row Highlighter

    Highlights Gmail rows on mouse over. It's a simple css injection. Link to source is on the sidebar.

    magroski

    71 users

  • Muslim Prayer Times

    Muslim Prayer Times

    Muslim prayer times in your city.

    RAYHANS

    71 users

  • Rename Tab Title of Domain/URL

    Rename Tab Title of Domain/URL

    Renames all titles of a particular domain or a single URL.

    Prashant Kamdar

    70 users

  • Ultimate Guitar Declutterer

    Ultimate Guitar Declutterer

    Gets rid of all the junk cluttering up chord and tab pages on Ultimate Guitar (ultimate-guitar.com)

    snwp212

    70 users

  • YouTube Open as Embed

    YouTube Open as Embed

    Gives a right-click menu option to open a YouTube video as an embed.

    Crowfunder

    70 users

  • YouTube Catify

    YouTube Catify

    Modify YouTube thumbnails to include Cats

    Catify

    70 users