TinyFish vs Firefox DevTools MCP
TinyFish is a plugin bundle for AI coding tools published by tinyfish-io. Marketplaces we read that list it: 3 (Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces). Firefox DevTools MCP is an MCP server published by mozilla. Marketplaces we read that list it: 2 (Official MCP Registry, Community GitHub marketplaces). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  TinyFish |  Firefox DevTools MCP |
|---|---|---|
| Claude: knowledge-work-plugins | Listed Version: 1.3.1 Forks (GitHub): 8 Stars (GitHub): 20 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 1.1.0 Forks (GitHub): 8 Stars (GitHub): 20 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.10.5 Downloads/month (npm): 15 837 Downloads/week (npm): 4 248 Forks (GitHub): 67 Stars (GitHub): 486 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | TinyFish | Firefox DevTools MCP |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 2 (worse) |
| Stars (GitHub) (differs) | 20 (worse) | 486 (better) |
| Forks (GitHub) (differs) | 8 (worse) | 67 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (agent.tinyfish.ai/mcp) | On your machine (@mozilla/firefox-devtools-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 2, secrets among them: 0 |
| Parts of the bundle (differs) | 7 | 8 |
| Licence (differs) | MIT | MIT OR Apache-2.0 |
| Repository (differs) | github.com/tinyfish-io/tinyfish-web-agent-integrations | github.com/mozilla/firefox-devtools-mcp |
| Changes in the last 7 days | 2 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | no remote endpoint we check |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
TinyFish
The complete web toolkit for your agent. Search the web and get answers in milliseconds. Fetch any URL and get clean markdown content back. Send a browser agent to navigate sites, fill forms, and extract structured data. Spin up a headless browser for full programmatic control when you need it.
Firefox DevTools MCP
Control and debug Firefox: navigate, fill forms, inspect network and console, profile.
How to run each
TinyFish As a Claude Code plugin
/plugin marketplace add anthropics/knowledge-work-plugins
/plugin install tinyfish@knowledge-work-pluginsFirefox DevTools MCP As a local MCP server: npm package
claude mcp add --transport stdio firefox-devtools-mcp -- npx -y @mozilla/firefox-devtools-mcp --tool-preset developerCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of TinyFish publish no settings it asks for, so we do not compare settings.
What it can do: TinyFish · What it can do: Firefox DevTools MCP · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.