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16,950 extensions found in Appearance

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  • Whitespace Cleaner

    Whitespace Cleaner

    Remove extra whitespace, blank lines, and trailing spaces from any text.

    Nolan

    1 user

  • Custom Favicon Changer

    Custom Favicon Changer

    Replaces the favicon (.ico) on any website you visit with an image you choose.

    Griff

  • New Tab Wallpaper

    New Tab Wallpaper

    Automatically changes your Firefox New Tab background using your own wallpapers.

    FART

  • APS - Advanced Phrase Search

    APS - Advanced Phrase Search

    Highlight words, phrases and full regular expressions at once, in a tidy in-page panel with per-term colours, live counts and prev/next navigation.

    Diamond

    1 user

  • Tab Groups Manager

    Tab Groups Manager

    Organize your open tabs into named groups and switch between them easily.

    Joanna

    1 user

  • Rastchin

    Rastchin

    This extension allows you to change language direction by Mohamad Samardeh Haghighi Fard .after installed , rightclick on your page content & find RTL-LTR Note: you must click on addon-menu item on every new url visit until page refresh, regards :)

    Mohamad Samardeh Haghighi Fard

    1 user

  • Page Language Detector

    Page Language Detector

    Detect the written language of any webpage and show confidence score.

    Wean

    1 user

  • Gemini Web Summarizer

    Gemini Web Summarizer

    Generate concise summaries of the current web page using the powerful Gemini API. Customize the summary length and output language.

    bruno_menon

    1 user

  • Spinning fish New Tab

    Spinning fish New Tab

    Replaces the default new tab page with a spinning fish.

    Riley :3

    1 user

  • Youtube comments sidebar

    Youtube comments sidebar

    Displays YouTube comments in a custom sidebar next to the video

    Dev Palwar

    1 user

  • Multicolor Windows

    Multicolor Windows

    Assign unique colors to each Firefox window with light/dark theme support

    Tambaza

    1 user

  • Ajuste de Texto

    Ajuste de Texto

    Controla el tamaño del texto en cualquier sitio web.

    Hacker598

    1 user

  • Amazing Sidebar

    Amazing Sidebar

    Amazing Sidebar — Vivaldi-style browser sidebar for Firefox. Open any website in your sidebar with keyboard shortcuts, context menu integration, and X-Frame-Options bypass.

    Irfan

    1 user

  • Simple XML viewer

    Simple XML viewer

    A simple XML viewer for Firefox.

    axthauvin

    1 user

  • Image Blur

    Image Blur

    A Firefox extension that blurs images until clicked.

    sparepillow

    1 user

  • Browser Theater

    Browser Theater

    Hover over any video to expand it to fill your browser window — without losing your tabs or address bar.

    하늘딛음

    1 user

  • NOSH

    NOSH

    Automatic ad volume reduction and interaction with YouTube's official Skip button.

    piterfly

    1 user

  • Caelestia Startpage

    Caelestia Startpage

    A fluid, morphing startpage for Firefox — themed live by the Caelestia shell.

    Kayo

  • Lights Out — Universal Dark Mode

    Lights Out — Universal Dark Mode

    Flip the lights out on the entire internet. This universal dark mode recolors every site into a comfortable night theme, with fine brightness and contrast tuning, per-site control, and scheduled auto-dark.

    Kenneth

  • EDZILLA Steam Saver

    EDZILLA Steam Saver

    Compare Steam prices with GG.DEALS directly inside Steam. View the lowest prices, historical lows, and wishlist deals without leaving the Steam Store.

    EDZEN

  • Midnight — Dark Mode for Every Site

    Midnight — Dark Mode for Every Site

    Turn the whole web dark. Midnight applies a smart, eye-friendly dark theme to every website automatically, with brightness and contrast controls, a per-site on/off toggle, and an optional night schedule.

    Kenneth

  • PR2R

    PR2R

    Adds a button to GitHub Pull Request pages to create a Release from the current Pull Request

    daf

    1 user

  • Dynamic Container Theme Color Switcher

    Dynamic Container Theme Color Switcher

    Changes the theme color based on the active container tab's color

    Rest of Stuff

    1 user

  • Auto Refresh Pagehg

    Auto Refresh Pagehg

    Automatically refresh the current tab at a set interval.

    feyen

    1 user

  • Direct2OA

    Direct2OA

    Direct Access to the document in Open Access Mode (if exists) and backup data in the browser's local Storage

    Géraldine Geoffroy

    1 user