Koskamo

Firefox CSS Theme MCP

An MCP server that enables AI assistants to inspect the Firefox chrome DOM, query computed styles, inject custom CSS, and capture UI screenshots in real time. It provides tools to launch the browser, customize toolbars, get UI trees, and manage injected stylesheets.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Firefox CSS Theme MCP logo, by easonwong-deCommunity listingLocal stdioSource reviewed; not executedPublished by easonwong-de
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 3 GitHub stars

What you can do with it

  • Inspect the Firefox chrome DOM hierarchy
  • Query elements matching CSS selectors
  • Inject custom CSS stylesheets into the live UI
  • Capture screenshots of specific UI components

Source and maintenance

Community listingRegistry 0.3.5MIT
mcp-registry: io.github.easonwong-de/firefox-css-theme@0.3.5Source repository
Last repository push
Latest release
v0.3.5
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

firefox-css-theme 0.3.5

npm
firefox-css-theme package definition
{
  "version": "0.3.5",
  "transport": "stdio",
  "identifier": "firefox-css-theme",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "firefox-css-theme-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-css-theme@0.3.5",
        "mcp"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "firefox-css-theme-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-css-theme@0.3.5",
        "mcp"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "firefox-css-theme-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "firefox-css-theme@0.3.5",
        "mcp"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "firefox-css-theme-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "firefox-css-theme@0.3.5",
        "mcp"
      ]
    }
  }
}

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