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Firefox extension

Firefox Extensions are add-ons that allow users to customize their web browser from Mozilla. They are downloadable through the Firefox Add-on website. Modern extensions follow WebExtension standard and are most often written in HTML, JavaScript, and CSS.

Here are 8 public repositories matching this topic...

GPThemes

itsmartashub / GPThemes

GPThemes is a Chrome and Firefox extension designed to improve the visual experience of ChatGPT with customisable accent colors, custom fonts, modern designs and custom chat bubble widths

chrome-extension firefox extension ai firefox-addon style themes openai firefox-extension browser-extension gpt modern-theme ui-customization chatgpt chatgpt-ui openai-chatgpt style-chatgpt chatgpt-enhancement chatgpt-themes

Updated Jul 27, 2025
SCSS

fedebotu / youchat-google-extension

A browser extension to display YouChat response alongside search engine results: like ChatGPT, but with knowledge of recent events and source citations!

chrome-extension firefox-addon webextension firefox-extension edge-extension chatgpt youchat bing-chat

Updated Feb 22, 2023
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dark-mode-for-outlook

jerboa88 / dark-mode-for-outlook

A browser extension/add-on that applies a better dark theme to Microsoft Outlook and removes ads

Updated Apr 28, 2025
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RegusAl / weather-app-extension

Weather App Extension for Firefox and Google Chrome

firefox chrome extensions firefox-extension chromeextension

Updated Jul 29, 2022
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track02 / Youtube-Player

Firefox extension for youtube video control

javascript css html youtube firefox-extension video-controls

Updated May 28, 2021
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d43m0nhLInt3r / IServDarkMode

IServ Dark Mode - A Browser Extension

firefox-addon dark-theme firefox-extension iserv darkmode

Updated Sep 30, 2020
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MWarCZ / Indian-tv-Dark-Skin

Doplněk/Rozšíření pro webové prohlížeče, které mění web Indian do tmavých barev.

chrome-extension dark-theme firefox-extension browser-extension

Updated Oct 22, 2023
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clach04 / duplicate-tabs-closer

Duplicate Tabs Closer Web browser extension - Detects and closes duplicate tabs for Chrome, Edge, and Firefox. Fork/branch with manifest v3 support

chrome-extension extension browser firefox-extension browser-extension edge-extension firefox-webextension duplicate duplicate-detection

Updated Mar 26, 2025
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Created by Mozilla

Released April 4, 2006

Followers: 312 followers
Website: github.com/topics/firefox-extension
Wikipedia: Wikipedia

Related Topics

browser firefox mozilla webextension