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io.github.easonwong-de/firefox-css-theme

السجل الرسمي أدوات المطورين

MCP for building, inspecting, and live-debugging Firefox CSS themes.

الشيفرة المصدرية التوثيق

ماذا يمكنك أن تفعل مع io.github.easonwong-de/firefox-css-theme؟

  • launch_browser: Launches Firefox with chrome debugging.
  • close_browser: Terminates the browser instance.
  • customize_toolbar: Toggles the Firefox "Customise Toolbar" mode.
  • get_ui_tree: Dumps the hierarchical DOM tree of the selected UI element.
  • query_ui_elements: Queries elements matching a CSS selector in the browser chrome.
  • get_computed_styles: Extracts computed CSS property values of a specific UI element.
  • inject_theme_css: Injects a stylesheet into the live UI.
  • remove_theme_css: Removes an injected stylesheet.

التثبيت

أضف هذا إلى إعدادات MCP في عميلك (Claude Desktop: claude_desktop_config.json، وCursor: ‏.cursor/mcp.json، ويستخدم VS Code وغيره الصيغة نفسها «mcpServers»).

NPM package firefox-css-theme
Claude Code 
claude mcp add firefox-css-theme -- npx -y firefox-css-theme@0.3.5 mcp
إعداد JSON (Claude Desktop وCursor وVS Code) 
{
    "mcpServers": {
        "firefox-css-theme": {
            "command": "npx",
            "args": [
                "-y",
                "firefox-css-theme@0.3.5",
                "mcp"
            ]
        }
    }
}

التوثيق

مأخوذ من ملف README للمشروع على GitHub ويُحدَّث أسبوعيًا. تفتح الروابط على GitHub.

المحتويات
  1. Firefox CSS Theme
  2. Getting Started
  3. MCP Server Usage
  4. Available MCP Tools
  5. Commands

Firefox CSS Theme

A toolkit for scaffolding, live-debugging, and installing Firefox CSS themes. For agentic DOM inspection and live styling, an MCP server is also available.

Getting Started

[!TIP] You need Node.js to get started.

For Theme Authors

Scaffold a new theme project using npx:

npx firefox-css-theme create

This interactively prompts for your theme name and stylesheet targets (userChrome only, userContent only, or both).

If you have already opened a theme repository, launch Firefox with live CSS hot-reloading:

npx firefox-css-theme start

[!NOTE] Theme entry files (userChrome.css and/or userContent.css) must be located at the root of the project directory.

For Theme Users

Navigate to the theme directory and install the stylesheets:

npx firefox-css-theme install

The toolkit will look for userChrome.css and userContent.css in the current directory, and install them into the selected Firefox profile.

For the full list of CLI options, run npx firefox-css-theme --help.

MCP Server Usage

The MCP server enables AI assistants to inspect the Firefox chrome DOM, query computed styles, inject custom CSS, and capture UI screenshots in real time.

Configuration

Add the server to your preferred client or development environment:

Claude Code
claude mcp add firefox-css-theme -- npx -y firefox-css-theme mcp
Codex
codex mcp add firefox-css-theme -- npx -y firefox-css-theme mcp
IDE MCP Configuration
{
    "mcpServers": {
        "firefox-css-theme": {
            "command": "npx",
            "args": ["-y", "firefox-css-theme", "mcp"]
        }
    }
}

Available MCP Tools

  • launch_browser: Launches Firefox with chrome debugging.
  • close_browser: Terminates the browser instance.
  • customize_toolbar: Toggles the Firefox "Customise Toolbar" mode.
  • get_ui_tree: Dumps the hierarchical DOM tree of the selected UI element.
  • query_ui_elements: Queries elements matching a CSS selector in the browser chrome.
  • get_computed_styles: Extracts computed CSS property values of a specific UI element.
  • inject_theme_css: Injects a stylesheet into the live UI.
  • remove_theme_css: Removes an injected stylesheet.
  • list_theme_css: Lists all currently injected stylesheets.
  • take_ui_screenshot: Captures a screenshot of a specific UI component.
  • execute_chrome_javascript: Runs JavaScript in the browser chrome window context.

Commands

firefox-css-theme create

Scaffold a new Firefox CSS theme project.

Usage
npx firefox-css-theme create [options]
Options
OptionDescription
-n, --name <name>Theme name
-t, --target <target>Stylesheet target: chrome, content, or both
-f, --forceProceed without warning
firefox-css-theme start

Launch Firefox with live stylesheet bundling and hot-reloading.

Usage
npx firefox-css-theme start [options]
Options
OptionDescription
-b, --binary <path>Path to Firefox executable
-p, --profile <name>Firefox profile name
--headlessRun in headless mode
--atbcStart with Adaptive Tab Bar Colour
--no-toolboxDisable Browser Toolbox
--no-watchDisable file watching
firefox-css-theme install

Install compiled stylesheets from the current working directory into a Firefox profile.

Usage
npx firefox-css-theme install [options]
Options
OptionDescription
-p, --profile <name>Firefox profile name
-m, --mergeMerge with existing stylesheets
-f, --forceProceed without warning

[!WARNING] This operation will overwrite existing CSS themes in the profile unless --merge is specified. A backup is advised.

firefox-css-theme mcp

Start the Model Context Protocol (MCP) server.

Usage
npx firefox-css-theme mcp [options]
Options
OptionDescription
-b, --binary <path>Path to Firefox executable
-p, --profile <name>Firefox profile name

الأسئلة الشائعة

ما هو io.github.easonwong-de/firefox-css-theme؟

MCP for building, inspecting, and live-debugging Firefox CSS themes.

كيف أثبّت io.github.easonwong-de/firefox-css-theme؟

يعمل على جهازك. في Claude Code: claude mcp add firefox-css-theme -- npx -y firefox-css-theme@0.3.5 mcp. وفي العملاء الآخرين، الصق إعداد JSON من هذه الصفحة في إعدادات MCP الخاصة بهم.

هل يحتاج io.github.easonwong-de/firefox-css-theme إلى مفتاح API؟

لا يذكر إدراجه في السجل أي مفتاح أو سر إلزامي. قد تتطلب بعض الميزات حسابًا لدى الخدمة التي يتصل بها.

هل io.github.easonwong-de/firefox-css-theme مفتوح المصدر؟

نعم. شيفرته متاحة على GitHub بترخيص MIT.

من يصون io.github.easonwong-de/firefox-css-theme؟

ينشره easonwong-de. يدرجه AI.tn لكنه لا يصونه ولا يوصي به.

من سجل MCP الرسمي. الإدراج ليس توصية: راجع شيفرة الخادم وصلاحياته قبل منحه الوصول إلى بياناتك.