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The Top 107 Opera Extension Open Source Projects on Github

Categories > Web Browsers > Opera Extension
Extension Boilerplate ⭐ 2,921
⚡️ A template for building cross browser extensions for Chrome, Opera & Firefox.
Github Hovercard ⭐ 1,581
Neat hovercards for GitHub.
Web Extension Starter ⭐ 1,173
🖥🔋Web Extension starter to build "Write Once Run on Any Browser" extension
Passff ⭐ 990
zx2c4 pass manager extension for Firefox, Chrome and Opera
Ghostery Extension ⭐ 969
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
Premid ⭐ 789
🧬 Source code of the PreMiD application.
Webextension Toolbox ⭐ 457
Small CLI toolbox for cross-browser WebExtension development
Browserextension ⭐ 312
💻 SteamDB's extension for Steam websites
Turbo Download Manager ⭐ 262
a multi-browser download manager with multi-threading support
Generator Web Extension ⭐ 224
Advanced WebExtension generator that creates everything you need to get started with cross-browser web-extension development.
Wallabagger ⭐ 224
Chrome / Firefox / Opera plugin for wallabag v2.
Feedly Notifier ⭐ 193
Google Chrome, Firefox, Opera and Microsoft Edge extension for reading news from RSS aggregator Feedly
Asciidoctor Browser Extension ⭐ 165
⚪️ An extension for web browsers that converts AsciiDoc files to HTML using Asciidoctor.js.
Save To The Wayback Machine ⭐ 107
Browser extension for quickly saving web pages to the Internet Archive's Wayback Machine.
Ccsearch Browser Extension ⭐ 102
Cross-Browser extension to search, filter and use images in the public domain and under Creative Commons licenses.
Kutt Extension ⭐ 101
🔗✂️ Cross-Browser URL Shortener Extension based on Kutt.it
Briskine ⭐ 81
Write faster with templates and keyboard shortcuts.
React Browser Extension Boilerplate ⭐ 81
🎉 React / Preact X browser extension boilerplate for the most popular browsers (Chrome, Firefox, Opera, new Edge and other Chromium-based browsers)
One Click Extensions Manager ⭐ 79
a simple chrome extension to manage chrome extension
Quickjira ⭐ 58
🚤 📂 Quickly access the JIRA of your choice by typing the ticket id
Slack Channels Grouping ⭐ 58
Chrome extension. Grouping slack channels.
Extension Cli ⭐ 43
Command line tool for building extensions/add-ons for chromium based browsers.
Scrolltotop ⭐ 42
Scroll To Top extension for Chrome, Firefox, Safari, Opera.
Amazon Tag Remover ⭐ 42
🚫 💹 🛒WebExtension for Chrome, Firefox, Edge and Opera to remove the Amazon affiliate tracking ID (tag) from amazon links
Bulkurlopener ⭐ 38
Bulk URL Opener is an application that provides the user with multiple utilities to help with managing and using large amounts of urls
Chummy ⭐ 31
The missing browser extension for Github.
Gladiatuscrazyaddon ⭐ 30
A browser addon for the Gladiatus browser game.
Webextension Fip ⭐ 29
Minimalistic WebExtension to listen to FIP Radio, the best eclectic radio station (for Firefox, Chrome, Opera and Edge)
Focus Extension ⭐ 28
Official browser extension for Focus (WebExtension currently supports Firefox, Opera, Brave, Vivaldi)
Syncwatch ⭐ 26
Browser extension to watch videos together
Duo Strength ⭐ 26
Browser extension to add back the strength for each individual skill, and other useful hidden statistics.
Weatherce ⭐ 24
Weather Browser Extension
Tab Counter ⭐ 24
A button badge that shows the number of tabs open in a window
Voracious ⭐ 21
Lookup tough words
Brainlytools_extension ⭐ 20
A toolbox for exclusive users of Brainly. It enhances Brainly and provides tools to do fast and massive actions and much more..
Tmetric Plugins ⭐ 18
Browser extension that adds TMetric one-click time tracking to popular Web apps.
Better500px Webextension ⭐ 16
Enhances 500px.com with a few useful shortcuts for better navigation
Prevent Duplicate Tabs ⭐ 16
Simple add-on/extension for prevent duplicate tabs
Page Shadow ⭐ 14
A Chrome, Firefox, Opera and Edge extension to increase contrast, decrase brightness and invert color of websites
Stylish Hub ⭐ 13
🍹 A browser extension that brings new GitHub features and experience.
Mediaplus ⭐ 11
MediaPlus is an extension that makes media content like flash movies, games, images or HMLT5 movies more usable on websites.
Chrome Otto Tabs ⭐ 10
Smart tabs management
Duckduckgo Bangs ⭐ 10
Jenkins Helper ⭐ 10
监控 Jenkins 构建状态和节点状态，同时也提供一些便利功能。Monitoring Jenkins build state and node state and helping Ops use Jenkins.
Yandex_music_fisher_mod ⭐ 10
Плагин для скачивания музыки с сервиса https://music.yandex.ru/ Расширение для браузеров Opera и Google Chrome
Tab Slider ⭐ 10
A Chrome/Opera/Firefox extension which just slides most recent tabs to the left, creating totally different browsing experience.
Csfd Magnets ⭐ 9
Magnet links for CSFD (chrome extension)
Rightclicksteamkeyactivator ⭐ 9
Chrome/Firefox/Opera Extension that allows to select/mark a SteamKey and quickly activate it via Right-Click Context Menu
2ch Helper ⭐ 9
Расширение для браузера, которое облегчает взаимодействие с имиджбордой 2ch.hk.
Hate Love Twitter ⭐ 9
Browser extension which hides likes of users you follow from your Twitter timeline
Security.txt ⭐ 9
ℹ️ Cross-platform browser extension for discovering security.txt and humans.txt files.
Zeronetloader ⭐ 8
A WebExtension to automatically load ZeroNet domains as well as use `z.net/` as shorthand or omnibox search keyword `zn`.
Google Meet Auto Accepter ⭐ 8
The Unofficial Social Blade Extension ⭐ 8
Unofficial browser extension for Social Blade.
Youtube Repeater ⭐ 7
Adds a button to YouTube videos to toggle auto-repeat.
Web Extension Hatemile For Browser ⭐ 7
Improve the accessibility of web pages, especially for users who use screen readers or navigate using the keyboard.
Chrome Manifest Loader ⭐ 7
Chrome manifest loader for webpack
Toster Extension ⭐ 7
Расширение браузера Toster Extension. Улучшает возможности сайта toster.ru
Email Validation Extension ⭐ 7
This is an extension for prevalidation before sending emails.
Pwdhash ⭐ 7
A secure local password generator based upon Stanford PwdHash (pwdhash.com)
Analytics Debug Panel ⭐ 6
Chrome, Firefox & Opera Browser Extension - Analytics Debug Panel
Linkedin Automation Extension ⭐ 6
This is a browser extension for Linkedin Auto connect and message
F Notifier ⭐ 6
Browser extension that displays your Facebook notifications unread count.
Rfc Reader ⭐ 5
Simple extension that makes IEFT's RFCs more eye friendly.
Selection Popup ⭐ 5
Perform customizable actions (Search, Copy etc) on selected text.
Youtube Audio Library Downloader ⭐ 5
YouTube Audio Library Downloader extension
Rbutr Browser Extension ⭐ 5
rbutr tells you when the webpage you are viewing has been disputed, rebutted or contradicted elsewhere on the internet.
Url Shortcut ⭐ 5
Allows users to create shortcuts that, when entered into the URL bar, will redirect them to the preset page
Youtube Blocker ⭐ 4
Browser extension blocking unwanted YouTube channels. Available for Mozilla Firefox, Google Chrome, Microsoft Edge and Opera.
Extension Framework ⭐ 4
Extension Framework is a platform that allows people to build one browser extension that runs on Google Chrome, Safari, and Opera
Redditinfinity ⭐ 4
Simple, lightweight, infinite scrolling for reddit
Noshow ⭐ 4
🚫 A simple extension to suppress notifications on social media. For Chrome, Opera and Firefox.
Google Sheets Tabs On Top ⭐ 4
Chrome extension. Move Google Sheets tabs on top.
Scrapfy Browser Extension ⭐ 3
A cross-browser extension for SCRAPfy.
Instagram Pro Browser Extension ⭐ 3
Chrome | Opera Extension
Clear Wikipedia Extension ⭐ 3
🌍With this plugin, the wikipedia URL in the search results are automatically directed to the 0wikipedia domain name.
Revolut Real Exchange Rates Monitor ⭐ 3
Track Revolut currency exchange to get best rate when you transfer.
Copy Url And Title ⭐ 3
A Google Chrome & Opera extension which lets you copy URL, Title, Title + URL of All Open Tabs or Current tabs in Text or HTML format using the right click (context) menu.
Dark Mode For Outlook ⭐ 2
A browser extension that applies a better dark mode to Outlook and removes the ad sidebar
Sankakudownloader ⭐ 2
Auto favorite and download posts from Sankaku image board plugging for chrome based browsers
Tp Notificator ⭐ 2
[READONLY] Track your Guild Wars 2 auction buying and selling orders and get notifications when you sold or bought anything
Browser Extension Build Pipieline ⭐ 2
Single Pipeline to Build Extensions for Chrome, Safari, Opera and Mozilla
Generator Ramp Webextension Kickstart ⭐ 2
The RAMP WebExtensions Generator is an advanced Browser Extensions generator that creates everything you need to get started with Browser Extensions development.
Ungamify ⭐ 2
Removes gamifications in some known websites so that you don't get addicted to them!
Browserback ⭐ 2
Allows ⌫ and ⌦ to navigate the current page
Webmaster Menu ⭐ 2
Extension for browsers Chrome, Opera, Yandex. Adds new items to browser context menu that open various analyzes of browsed web pages and sites.
Turn Off The Lights Opera Extension ⭐ 2
Opera extension
Browser_plugin ⭐ 2
frontend: Vue.js
Senscritique Notifier ⭐ 2
Browser extension that displays your SensCritique notifications unread count.
Vkpph ⭐ 2
VK.com private profiles highlight
Thespammer ⭐ 2
Estensione per Google Chrome, Firefox, Edge e Opera che permette di spammare messaggi su Whatsapp Web, Telegram Web, Google Meet e altre piattaforme
Dogify ⭐ 2
Help Dogify the web!
Websphinx Chrom ⭐ 1
Chrom* Addon for Sphinx-based Password Storage
File Organizer Extension ⭐ 1
File Organizer extension - The extension assists in managing Downloads.
Extension ⭐ 1
The cross-browser extension of the url-shortener
Korabrowserextensions ⭐ 1
This respository focus on Kora Extensions for Google Chrome, Firefox and Opera
Hide Youtube Recommendations ⭐ 1
A chrome and opera browser extension to remove YouTube recommended sidebar, user comments, home page related videos feed,
Nils Extension ⭐ 1
[Under Development] Nil cross-browser extension
Multi Links ⭐ 1
A chrome extention, open multiple links at once.
Sg.hu Tuning ⭐ 1
A Chrome extension for the popular sg.hu site
1-100 of 107 projects

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Chrome Extension Edge Opera Projects (7)
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Advertising 📦 9
All Projects
Application Programming Interfaces 📦 120
Applications 📦 181
Artificial Intelligence 📦 72
Blockchain 📦 70
Build Tools 📦 111
Cloud Computing 📦 79
Code Quality 📦 28
Collaboration 📦 30
Command Line Interface 📦 48
Community 📦 81
Companies 📦 60
Compilers 📦 60
Computer Science 📦 74
Configuration Management 📦 39
Content Management 📦 167
Control Flow 📦 197
Data Formats 📦 77
Data Processing 📦 266
Data Storage 📦 132
Economics 📦 60
Frameworks 📦 198
Games 📦 122
Graphics 📦 103
Hardware 📦 148
Integrated Development Environments 📦 47
Learning Resources 📦 147
Legal 📦 28
Libraries 📦 119
Lists Of Projects 📦 21
Machine Learning 📦 336
Mapping 📦 61
Marketing 📦 15
Mathematics 📦 55
Media 📦 228
Messaging 📦 97
Networking 📦 304
Operating Systems 📦 84
Operations 📦 120
Package Managers 📦 52
Programming Languages 📦 229
Runtime Environments 📦 96
Science 📦 42
Security 📦 375
Social Media 📦 26
Software Architecture 📦 70
Software Development 📦 68
Software Performance 📦 57
Software Quality 📦 127
Text Editors 📦 45
Text Processing 📦 131
User Interface 📦 310
User Interface Components 📦 465
Version Control 📦 29
Virtualization 📦 68
Web Browsers 📦 38
Web Servers 📦 25
Web User Interface 📦 194
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