Open Source Browser Extensions and Plugins
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Browser Extensions and Plugins
Browse free open source Browser Extensions and Plugins and projects for Windows and ChromeOS below. Use the toggles on the left to filter open source Browser Extensions and Plugins by OS, license, language, programming language, and project status.
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Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
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uBlock
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox, and Safari. Available on the Chrome Web Store or for manual installation. Available to install from the homepage. Available for install from the homepage or from the App Store. Available on the Firefox Add-ons site, or for manual installation. Opera shares Chrome's underlying engine, so you can install uBlock simply by grabbing the latest release for Chrome.To benefit from uBlock's higher efficiency, it's advised that you don't use other blockers at the same time (such as AdBlock or Adblock Plus). uBlock will do as well or better than most popular ad blockers. It's important to note that blocking ads is not theft. Don't fall for this creepy idea. The ultimate logical consequence of blocking = theft is the criminalisation of the inalienable right to privacy. -
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Turbo Download Manager
A portable modern multi-threading download manager for all platforms
A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip -
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Ruler
Gradle plugin which helps you analyze the size of your Android apps
App size is an important metric which directly correlates with business metrics like install conversion rate. Measuring app size is straightforward, but knowing what contributes to it is not. Especially in bigger projects with hundreds or thousands of modules and third-party dependencies. Ruler provides a convenient way to find out how much each module and dependency contributes to the total size of your app by running a single Gradle task. First you need to add the Ruler Gradle plugin to the buildscript classpath in your top-level build.gradle file. When using app bundles, Google Play will generate optimized APKs for each device. This means that the size of an APK depends on the specifications of the device that's downloading it. You can configure which device specifications should be used for the analysis in the build.gradle of your application module. -
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huhamhire-hosts
hosts for Internet Freedom
Since the governments of some countries are using the blocking the internet access to several websites and web service providers which includes some world famous sites like Google, YouTube, twitter, Facebook, and Wikipedia etc., we designed this tiny utility in order to help people getting through the Internet blockade. Hosts Setup Utility provides basic tools to manage the hosts file on current operating systems. It also provides both support for Graphical Desktop environment with Graphical User Interface (GUI) and CLI environment with Text-based User Interface (TUI). Users could use these tool to modify the hosts to visit specified websites or services blocked by ISP/government. Functions which help users to backup/restore hosts files are also provided. For more detailed information, please visit the website of this project. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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CherryPad - Browser Notepad
Your Sleek, Distraction-Free Notepad for Endless Productivity
CherryPad: Your Sleek, Distraction-Free Notepad for Endless Productivity Welcome to CherryPad 🍒, the notepad extension for your browser! CherryPad is designed to make your note-taking experience quick, convenient, and visually pleasing. With features like AutoSave, a built-in emoji panel, and hidden Easter Eggs, CherryPad offers a fun yet practical workspace. -
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MBR-Cookie-Consent
Enterprise-grade GDPR/CCPA compliant cookie consent with IAB TCF v2.3
MBR Cookie Consent is the most comprehensive, enterprise-grade cookie consent management plugin for WordPress - completely free. Built for publishers, e-commerce sites, and businesses that take privacy seriously. **100% Free. Forever.** All premium features included at no cost - no upsells, no restrictions, no hidden fees. **Enterprise-Grade.** Used by professional publishers, advertisers, and agencies worldwide. **Easy Setup.** Configure in 5 minutes with intelligent defaults and one-click policy generation. -
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'Text to Voice' or 'Text to Speech' is 1 of the coolest Firefox add-ons. It gives ur brwsr the pwr of speech. Select txt, clck the bttn on the bttm rite & this add-on spks the selectd txt 4 u. Isn't it brllant? Moreovr odio file cn b dnloaded as
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Cross platform GUI managing bookmarks and shortcuts in a portable way. Support import/export, search, encryption, hierarchical tags, USB key installation, various environments integration, OS-dependent shortcuts, plugins extensibility.
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MultiOpen Bookmarklet is a JavaScript bookmarklet which allows cross-browser opening of a list of URLs in separate tabs or windows, without the overhead of a browser extension
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Application Monitoring That Won't Slow Your App DownFull APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
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pinvault-pro-extension
AI-powered browser extension for bulk downloading Pinterest images wit
PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: • Visual checkbox overlays on Pinterest images for intuitive selection • AI-powered auto-scroll with smart content detection • Bulk download capabilities with real-time progress tracking • HD quality preservation in original resolution • Modern glassmorphism interface design • Privacy-focused architecture with no external servers • Cross-browser compatibility (Firefox, Chrome, Edge, Opera) • Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: • Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) • Chrome/Edge: Manifest V3 compatible (60.0 KB package) • Opera: Manifest V3 compatible (60.3 KB package) -
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Magnetic
Browser addon to batch download torrents
I developed this for my own needs but I don't see why I shouldn't share it! Usage is very easy: * Make sure you have installed an application capable of intercepting magnet: links (see http://en.wikipedia.org/wiki/Comparison_of_BitTorrent_clients#Features_I) * Open at least a magnet link manually and associate a default application to the protocol * Now clicking the addon button will open all magnet links in all open tabs and send them to the torrent client! Let me know if you find any issues, this is my very first mod and is very early in development, it definitely needs more work ;) -
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Android Easy MultiDex
Android, multidex, splitdex, subpackage plugin
Android, multidex, splitdex, subpackage plugin. The Gradle script was integrated into the plug-in, so that only one configuration file needs to be maintained. Readers can choose separate configuration or integrated configuration according to their own needs. In this way, we maintain the number of methods of the main Dex at about 15,000, and we no longer have to worry about the number of methods. Through the above official subcontracting, the original Dex has been divided into 1 master Dex and more slave Dex. The main Dex contains all 4 major components, Application, Annotation, multidex, etc. and their necessary direct dependencies. Since the number of our methods has reached 16W, hundreds of activities were all stuffed into the main Dex, and the main Dex was successfully exploded. -
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Cross browser userscript to download videos from YouTube in various formats and sizes available. Find size of videos before downloading (http://pradip.x10.mx/index.php/download-details/36/Helper) Check Readme.txt in Files section for installation instructions.
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Several components used together to enable scripting in a browser using programming languages other than native JavaScript. It includes a Java Applet and JavaScript files.
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CatBlock
The continued maintenance of Michael Gundlach's CatBlock
After the creator of AdBlock, Michael Gundlach, retired official support of the CatBlock project, and made it Open-Source under the GNU GPLv3, two people decided to continue maintenance, albeit unofficially. This is that project. -
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ChatGPT Bulk Delete
Bulk delete your ChatGPT conversations easily with this Chrome extensi
ChatGPT Bulk Delete is a modern and efficient Chrome extension that lets you delete all or selected ChatGPT conversations with a single click. With its elegant UI, fast performance, and privacy-friendly design, this open source tool streamlines conversation management for ChatGPT users. Installation is easy, and the extension supports the latest ChatGPT interface. Simply open ChatGPT, click the “Bulk Delete” button, and confirm your action to quickly clear your chat history. Built with React, TypeScript, and Tailwind CSS, and actively maintained for the best user experience. Key Features: • Bulk delete all or selected ChatGPT conversations with one click • Fast, safe, and privacy-conscious operation • Open source and free to use Installation: 1. Clone the repository: git clone https://github.com/joysey/chatgpt-bulk-delete.git 2. Install dependencies: pnpm install 3. Build the extension: pnpm build 4. Load the extension in Chrome via the Extensions page (chrome://ext -
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Coloring4kids-coloring-prompt-builder
Ai Coloring Pages Prompt Builder
Coloring-4kids Prompt Builder is a lightweight Chrome extension that simplifies the process of generating AI coloring-page prompts. It supports direct export to MidJourney, Stable Diffusion, Ideogram, and ChatGPT. The tool includes presets for kids, kawaii, mandalas, and affirmations, plus a surprise randomizer and history tracking. -
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Comicola is a Firefox add-on to easily view your favourite comics online everyday. Download the latest version at https://addons.mozilla.org/en-US/firefox/addon/13581/
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Distpicker
Plugin for picking provinces, cities and districts of China
Distpicker is a lightweight jQuery plugin that provides a cascading dropdown selector for regions such as country, state/province, and city, making it easy to build structured address forms without manual data entry. When initialized on a form, Distpicker automatically populates each related <select> element with hierarchical location data and updates them in response to user selections, ensuring users only see relevant regional options. For example, choosing a country filters the state list, and choosing a state filters the city list, reducing errors and improving the user experience on profile or checkout forms. The plugin is customizable in terms of initial values, placeholder text, and which dropdowns to include, and it also supports dynamic updates if you need to reset or reload region data based on custom logic. It’s especially handy for applications that require structured address input across multiple locales without building and maintaining your own region datasets. -
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Docs Online Viewer
Easily open documents/files of any format you found on the web
Docs Online Viewer is a Firefox add-on that allows you to easily open documents/files of any format you found on the web (PDF, DOC, DOCX, XLS, PPT, RTF, ODT, ODP, CSV etc.) using Google Docs and Zoho Viewer. This way, Docs Online Viewer eliminates the need to open online docs in an external application. Docs Online Viewer is cross-platform and it works on Mac OS X, Windows and Linux. This script reduces the need for additional plugins required to open documents such as Acrobat reader plugin, etc. This is light weight on your system compared to using third party softwares, reducing browser / system crashes and load on your system. -
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Emmet-vim
Plug-in for expanding abbreviations similar to emmet
Emmet-vim is a Vim plugin that brings Emmet-style abbreviation expansion to Vim users working with HTML, CSS, JSX, and other markup-heavy formats. It lets you type compact CSS-selector-like expressions and expand them into full HTML or XML structures with a single key combination, drastically speeding up front-end templating. The plugin supports many Emmet constructs such as IDs, classes, nesting, multiplication, numbering, text content, and attribute syntax. It can be installed using common Vim plugin managers like vim-plug, Vundle, or Pathogen, or manually by copying the plugin and autoload directories. Users can restrict activation to specific filetypes (for example only HTML and CSS), tweak the keybindings, and define custom snippets and settings via g:user_emmet_settings. The project has been around for years and is widely referenced in front-end Vim setups, making it a de-facto standard for fast markup authoring in Vim and Neovim. -
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A plug-in for Firefox that exports the user's bookmarks to CSV file format. We hope to expand to other formats (e.g. XML) soon!
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Firefox Password Filler
Fills login forms even after a delayed page load
For some websites firefox does not save passwords or automatically fills the login forms. This extension scans the given urls multiple times to find the login form and then fills in username and password. Passwords are stored by the default firefox password manager. The input fields containing login information can be manually set by the user. -
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