Shotanvil vs Firefox DevTools MCP

A side-by-side look at the Shotanvil and Firefox DevTools MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Shotanvil logoShotanvilBrowser Automation · Remote HTTP/SSEScreenshot/PDF/HTML rendering API. API key or x402 required — keyless access disabled.37FairAuth: not declaredFirefox DevTools MCP logoFirefox DevTools MCPBrowser Automation · Local subprocess (stdio)Control and debug Firefox: navigate, fill forms, inspect network and console, profile.71GreatAuth: no auth required

Verdict: choose Shotanvil for browser automation work over a hosted endpoint; choose Firefox DevTools MCP for browser automation as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Shotanvil logoChoose Shotanvil when

  • You need dedicated capabilities in the Browser Automation domain.
  • You prefer a remote HTTP/SSE transport.
  • You have the keys it needs: SHOTANVIL_API_KEY.
Explore Shotanvil

Firefox DevTools MCP logoChoose Firefox DevTools MCP when

  • You need dedicated capabilities in the Browser Automation domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like list_pages, new_page, navigate_page.
Explore Firefox DevTools MCP

Feature & specification comparison

Rows where the two servers differ are marked.

SpecShotanvil logoShotanvilFirefox DevTools MCP logoFirefox DevTools MCP
CategoryBrowser AutomationBrowser Automation
Quality signal37/100 · Fair71/100 · Great
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsSHOTANVIL_API_KEYNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars0516
Directory activity 1 views 0 installs 0 upvotes 3 views 0 installs 0 upvotes
ToolsNot listed35

Tools & capabilities

Shotanvil tools

No tool names declared yet. Check the project README from the listing page.

Firefox DevTools MCP tools 35

  • list_pagesList open tabs (index, title, URL). Selected tab is marked.
  • new_pageOpen new tab at URL. Returns tab index.
  • navigate_pageNavigate selected tab to URL.
  • select_pageSelect active tab by index, URL, or title. Index takes precedence.
  • close_pageClose tab by index.
  • get_page_textGet the visible text of the page (document.body.innerText). Caps at maxLength (default 20000 chars); saveTo saves the full text to a file.
  • take_snapshotCapture DOM snapshot with stable UIDs. A UID stays valid across snapshots until its element is removed or the page navigates. Output caps at maxLines (default 100); scope with selector or dump the full tree with saveTo.
  • resolve_uid_to_selectorResolve UID to CSS selector. Fails if the element is gone.
  • clear_snapshotClear snapshot UIDs. Usually not needed.
  • click_by_uidClick element by UID. Set dblClick for double-click.
  • hover_by_uidHover over element by UID.
  • fill_by_uidFill text input/textarea by UID.
  • +23 more on the listing page

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Shotanvil

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "shotanvil": {
      "url": "https://api.shotanvil.com"
    }
  }
}

Firefox DevTools MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "firefox-devtools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mozilla/firefox-devtools-mcp@latest"
      ]
    }
  }
}

Frequently asked questions

Shotanvil is categorized under Browser Automation and uses a remote HTTP/SSE transport. Firefox DevTools MCP belongs to Browser Automation and uses a local stdio subprocess. Pick Shotanvil for browser automation work and Firefox DevTools MCP for browser automation.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Shotanvil has no declared pricing — check the project's own site. Firefox DevTools MCP is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add shotanvil and firefox-devtools-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Shotanvil has a quality signal of 37/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Firefox DevTools MCP has 71/100 (Great) with 3 views, 0 installs and 516 GitHub stars.