Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/Johnnyzlee/agent-bridge-for-tab-management-in-firefoxWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/mcp/johnnyzlee/agent-bridge-for-tab-management-in-firefox/firefox-tab-management-agent-mcp)<a href="https://agentmods.dev/mcp/johnnyzlee/agent-bridge-for-tab-management-in-firefox/firefox-tab-management-agent-mcp"><img src="https://agentmods.dev/badge/mcp/johnnyzlee/agent-bridge-for-tab-management-in-firefox/firefox-tab-management-agent-mcp/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/mcp/johnnyzlee/agent-bridge-for-tab-management-in-firefox/firefox-tab-management-agent-mcp"><img src="https://agentmods.dev/badge/mcp/johnnyzlee/agent-bridge-for-tab-management-in-firefox/firefox-tab-management-agent-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
firefox-tab-management-agent-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
{ "firefox-tab-management-agent-mcp": { "command": "npx", "args": [ "-y", "firefox-tab-management-agent-mcp" ] } }
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 9 lines scan A c471e9cf3dae
firefox-tab-management-agent-mcp is an MCP server published in the GitHub repository Johnnyzlee/agent-bridge-for-tab-management-in-firefox (0 stars, last pushed 25d ago), licensed MPL-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other mcp servers, from other repositories
opencode-chrome-bridge
MCP server "opencode-chrome-bridge" as configured in Mukller/opencode-chrome. Runs locally from the opencode-chrome-bridge npm package.
foxbridge-mcp
FoxBridge — an MCP server + Firefox extension that lets an AI assistant read and drive your real, logged-in Firefox: tabs, DOM, cookies (incl. httpOnly), sessions, storage, and page APIs. Plus on-disk profile reading (cookies, history, sessions, localStor. Runs locally from the foxbridge-mcp npm package. Needs 1…
invisible-playwright-mcp
Stealth Firefox browser as an MCP server for AI agents. Runs locally from the invisible-playwright-mcp Python package.
playwright-test
A high-level API to automate web browsers. Runs locally from the playwright npm package.
computer-use-mcp
Control your computer with screenshots, mouse, and keyboard automation. Runs locally from the computer-use-mcp npm package.
reddit-mcp-buddy
Reddit browser for AI assistants. Browse posts, search content, analyze users. No API keys needed. Runs locally from the reddit-mcp-buddy npm package.