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Browser extension and MCP server for external apps
External Application Launcher connects a browser to desktop programs through a toolbar button and context menu. You define commands and arguments, then send the current page, selected text, image URLs, or download links to the app you want. The repo also exposes an MCP server so agents can use the same actions.
Builders who want their browser actions and desktop apps available to Claude-style tools or other agent setups.
You can hand page content, selections, and links to external apps without copy-pasting them first.
What it does
Toolbar and context menu actions
Adds an action button and right-click menu items that run your chosen command.
Custom command-line arguments
Lets you pass page URLs, selected text, image URLs, and download links into external programs.
Browser-to-app handoff
Can send the current page to another browser or pass content to editors and download managers.
MCP server support
Exposes browser actions through `v3/mcp-server.js` so agents can use them as tools.
README
External Application Launcher
Use external applications through a toolbar button or context menu item.
This extension lets you create a customizable toolbar button (action button) and context menu items to execute programs with your chosen command-line arguments. For example, you can:
- Send the current page to another browser
- Send selected text to a text editor
- Send image URLs to a photo editor
- Send download links to an external download manager!
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MCP Server
This extension can be used with coding agents such as OpenCode. Also it can help other extensions to introduce their tools to the agents. Read FAQs page for more info.
Links
Files in the repo
- .github
- misc
- v2
- v3
- Icon
- LICENSE
- README.md
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