To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in

1,396 extensions found in Appearance

Filter results
Search results
  • QuoteDrop

    QuoteDrop

    Display a fresh random inspirational quote each time you open the popup

    Gelmof

    28 users

  • Banner Maker

    Banner Maker

    Create ASCII text banners in multiple classic styles

    kossmann

    28 users

  • TimerDrop

    TimerDrop

    Drop a countdown and track time remaining in the toolbar badge

    nehan

    28 users

  • WordPulse

    WordPulse

    Pulse-highlight every occurrence of a selected word on the page

    tajiu

    28 users

  • WordScope

    WordScope

    Scope the text on any page — words, sentences and reading time

    Armani

    28 users

  • DailyWit

    DailyWit

    Get a witty or wise quote on demand from the toolbar

    Gelmof

    28 users

  • Reading Progress Bar PRO

    Reading Progress Bar PRO

    Shows a customizable reading progress bar as you scroll through content

    Sumalya Chatterjee

    28 users

  • WisdomPop

    WisdomPop

    Pop up wisdom — random quotes from history's greatest minds

    Gelmof

    28 users

  • DeadlineClock

    DeadlineClock

    Deadline clock — set a countdown and get notified when done

    nehan

    28 users

  • MeasurePx

    MeasurePx

    Measure any element or distance on the page in pixels with a ruler

    Ozana

    28 users

  • Tab Manager for Mobile

    Tab Manager for Mobile

    This adds Tab-Manager page.

    utubo

    28 users

  • DupeLight

    DupeLight

    Light up duplicate words — click to highlight all matching text

    tajiu

    28 users

  • Git Reference

    Git Reference

    Browse categorized Git commands and copy them instantly

    ayleen azazel

    27 users

  • Deadline Watch

    Deadline Watch

    Set deadlines and watch countdowns tick in real time

    TannhDeina

    27 users

  • ChatGPT Diagram Renderer

    ChatGPT Diagram Renderer

    Renders Diagrams, Chats, Mindmaps and other formats directly in the ChatGPT Webinterface, using the kroki.io API

    grayfallstown

    27 users

  • Islamic Prayer Times

    Islamic Prayer Times

    Islamic Prayer Times provides You with Hijri Date, Prayer Times, and the remaining time for the next pray depending on your time zone.

    Mohamed Hafez

    27 users

  • GitHub Pages 404

    GitHub Pages 404

    Provides links to Owner's Profile and GitHub Repo on a GitHub Pages 404 page.

    Harsh Narayan Jha

    27 users

  • Event Countdown

    Event Countdown

    Count down to any future date with days hours and minutes

    TannhDeina

    27 users

  • ASCII Art

    ASCII Art

    Convert text to ASCII art with multiple font styles

    kossmann

    27 users

  • Save to Read

    Save to Read

    Bookmark articles and links to a quick-access reading list

    Kirtida

    27 users

  • YouTube Show Progress

    YouTube Show Progress

    Display custom progress bar for YouTube videos.

    Somebody

    27 users

  • Anti-distractor for StackExchange

    Anti-distractor for StackExchange

    Hides the sidebar on StackExchange to help you focus.

    AstroRP

    27 users

  • Scroll

    Scroll

    Auto-scrolling reader where pages stay still as you read them. Read naturally top-to-bottom while the next page progressively reveals from above, sliding down to cover the current page. No chasing moving text - content stays stable under your eyes

    Perfect Secrecy Apps

    27 users

  • Tab Clock

    Tab Clock

    Monitor active browsing time per open tab

    walter

    27 users

  • Mobilizer for SwiftDial

    Mobilizer for SwiftDial

    Unlocks special SwiftDial features on mobile browsers.

    nScript

    27 users