Open Source ChromeOS Browser Extensions and Plugins

Browser Extensions and Plugins for ChromeOS

Browse free open source Browser Extensions and Plugins and projects for 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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  • 1
    Gemma 4 Browser Assistant

    Gemma 4 Browser Assistant

    On-device AI agent Chrome extension powered by Transformers.js

    Gemma 4 Browser Assistant is an open-source browser extension that embeds an AI assistant directly into the browsing experience, powered by on-device machine learning models. It uses Transformers.js and Gemma models to run inference locally in the browser, eliminating the need for external servers and preserving user privacy. The extension includes a side panel interface that allows users to interact with the AI while browsing, enabling tasks such as summarizing pages and answering questions. It can access and analyze page content, browsing history, and tab state to provide contextual assistance. The architecture follows modern browser extension standards, with separate components for background processing, content scripts, and UI rendering. It also supports tool-calling capabilities, allowing the AI to perform actions such as navigating tabs or highlighting elements. Overall, it demonstrates how to build fully local, agent-based assistants inside web browsers.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 2
    uBlock

    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.
    Downloads: 25 This Week
    Last Update:
    See Project
  • 3
    Turbo Download Manager

    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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    Downloads: 103 This Week
    Last Update:
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  • 4
    Another YouTube Downloader
    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.
    Downloads: 4 This Week
    Last Update:
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  • 5
    Docs Online Viewer

    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.
    Downloads: 7 This Week
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    See Project
  • 6
    pinvault-pro-extension

    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)
    Downloads: 3 This Week
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  • 7
    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!
    Downloads: 4 This Week
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  • 8
    Text to Voice
    '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
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    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.
    Downloads: 2 This Week
    Last Update:
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  • 10
    Window Expander For Youtube
    The Window Expander for YouTube maximizes YouTube videos in the web browser eliminating all white space and other texts for Google Chrome. This is different then the fullscreen button in that it does not change the size of the actual browser window.
    Downloads: 2 This Week
    Last Update:
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  • 11
    Adam's Code
    This is a site that I use to keep programs I make and want to share.
    Downloads: 1 This Week
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  • 12
    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox & Chrome - Extension (Add-ons)

    In Browser Chrome by Google or Firefox and Thunderbird by Mozilla you can per default configure only the setting for one internet connection. With the MM3- Proxy Switch you can manage different configurations and simply switch over between these.
    Downloads: 1 This Week
    Last Update:
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  • 13

    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 ;)
    Downloads: 1 This Week
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  • 14
    BenchLab is a Web Application benchmarking framework using real web browsers.
    Downloads: 1 This Week
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  • 15
    Downloads: 1 This Week
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  • 16
    Android Easy MultiDex

    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    BAWN stands for Browser-like Automated Web Navigation and is a simple language which intends to make automated web browsing easier. It describes steps that an interpreter should follow in order to emulate a human-like navigation.
    Downloads: 0 This Week
    Last Update:
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  • 18
    This Firefox Browser Extension puts on-screen keyboard when a website has a form / field for alternative letter shape instead of the k / K shape per http://Kalphabet.googlepages.com. This alteration is for spiritual reasons.
    Downloads: 0 This Week
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  • 19
    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.
    Downloads: 0 This Week
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  • 20
    CatBlock

    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.
    Downloads: 0 This Week
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  • 21
    ChatGPT Bulk Delete

    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
    Downloads: 0 This Week
    Last Update:
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  • 22
    CherryPad - Browser Notepad

    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    A collection of ported widgets from popular program like FireFox add-ons, Opera widgets, Apple Dashboard, Vista Sidebar, Yahoo and Google gadgets to be platform independent and cross browser. Cidgets can be integrated into your Blog, Web site or Web apps
    Downloads: 0 This Week
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  • 24
    Clip and Share

    Clip and Share

    Clip and Share your world! Social sharing made easy.

    Clip and Share your world with the greatest of ease using this extension for Google Chrome! With just a couple of clicks, you can share content to social networks of your choice without having to mess with copying and pasting links, saving and uploading photos, or copying the exact text of an interesting quote only to find that it doesn't paste properly. Clip and Share makes sharing content online ENJOYABLE and QUICK! The following networks are supported by Clip and Share: * Facebook * Twitter * Tumblr * Google+ * MySpace * Reddit * StumbleUpon * Digg * Delicious * LinkedIn Clip and Share is NOT affiliated in any way with any of the above networks. It is built on existing public frameworks using proprietary software in order to make life a little bit easier.
    Downloads: 0 This Week
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  • 25
    Coloring4kids-coloring-prompt-builder

    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.
    Downloads: 0 This Week
    Last Update:
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