io.github.easonwong-de/firefox-css-theme
firefox-css-theme
Is the io.github.easonwong-de/firefox-css-theme MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-26.
MCP for building, inspecting, and live-debugging Firefox CSS themes.
alive probed 2026-11-14 · unchanged since 2026-10-26
- Run it
- npx -y firefox-css-theme@0.3.5 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- firefox-css-theme 0.3.5
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 1.9k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 2.0k. The o200k_base estimate is 958. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/easonwong-de/Firefox-CSS-Theme
- Registry
- active, updated 2026-10-25 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.97×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| launch_browser | 299 | 152 | 16 % |
| inject_theme_css | 230 | 117 | 12 % |
| get_computed_styles | 193 | 98 | 10 % |
| remove_theme_css | 183 | 93 | 10 % |
| get_ui_tree | 177 | 90 | 9 % |
Compare this server with others.
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.