Extension Source Viewer & Downloader by Muzammil
View source code of browser extensions from Chrome, Firefox, Opera, Edge, and other browsers. Works with CRX, XPI, and NEX files.
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About this extension
A modern, redesigned Chrome Extension Source Viewer & Downloader extension allows you to view and download the source code of Chrome extensions directly from the Chrome Web Store and other sources.
Features
📦 Download extensions as ZIP files
👁️ View extension source code in a beautiful interface
🔍 Search within files with regex support
📂 File filtering by type (code, markup, images, locales, misc)
🎨 Syntax highlighting for various languages
📸 Image viewer with zoom controls
📋 Copy code to clipboard
💾 Download individual files
🎯 New Modern Features:
⚡ Lightning-fast performance with modern React
🎨 Beautiful, responsive UI with TailwindCSS
🔧 Built with WXT for better developer experience
💪 Full TypeScript support
🎯 Better file organization and code structure
🌈 Improved syntax highlighting
📱 Better mobile-responsive design
Usage
- Via Extension Icon
-- Navigate to any extension on the Chrome Web Store
-- Click the CRX Viewer extension icon
-- Choose to either:
-- Download as ZIP: Directly download the extension
-- View Source: Open the source code viewer
Features
📦 Download extensions as ZIP files
👁️ View extension source code in a beautiful interface
🔍 Search within files with regex support
📂 File filtering by type (code, markup, images, locales, misc)
🎨 Syntax highlighting for various languages
📸 Image viewer with zoom controls
📋 Copy code to clipboard
💾 Download individual files
🎯 New Modern Features:
⚡ Lightning-fast performance with modern React
🎨 Beautiful, responsive UI with TailwindCSS
🔧 Built with WXT for better developer experience
💪 Full TypeScript support
🎯 Better file organization and code structure
🌈 Improved syntax highlighting
📱 Better mobile-responsive design
Usage
- Via Extension Icon
-- Navigate to any extension on the Chrome Web Store
-- Click the CRX Viewer extension icon
-- Choose to either:
-- Download as ZIP: Directly download the extension
-- View Source: Open the source code viewer
- Via Context Menu
-- Right-click anywhere on a Chrome Web Store extension page
-- Select "View extension source code" or "Download extension as ZIP" - Via Source Viewer
-- The source viewer provides:
-- File List: Browse all files in the extension
-- Filter Files: Filter by filename or type (code, markup, images, etc.)
-- Search: Search for text across all files
-- Syntax Highlighting: Automatic syntax highlighting for code files
-- Image Preview: View images with zoom controls
-- Download: Download the entire extension or individual files
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Permissions and data
Required permissions:
- Download files and read and modify the browser’s download history
- Access browser tabs
- Access your data for sites in the addons.mozilla.org domain
- Access your data for sites in the addons.allizom.org domain
- Access your data for clients2.google.com
- Access your data for clients2.googleusercontent.com
- Access your data for edge.microsoft.com
- Access your data for addons.mozilla.org
- Access your data for addons.cdn.mozilla.net
- Access your data for addons.allizom.org
- Access your data for addons-dev.allizom.org
- Access your data for addons-dev-cdn.allizom.org
- Access your data for addons.thunderbird.net
- Access your data for addons-stage.thunderbird.net
- Access your data for addons.opera.com
- Access your data for addons-extensions.operacdn.com
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.0.3
- Size
- 686.75 KB
- Last updated
- 3 months ago (May 14, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
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