Firefox MCP Server

Instructions

Implementation Reference

• index.js:491-502 (handler)

  Handler function that executes page.goBack() to navigate back in browser history and returns a success message.

  //   async back() {
  //     this.ensureBrowserRunning();
  //     await this.page.goBack();
      
  //     return {
  //       content: [
  //         {
  //           type: 'text',
  //           text: 'Navigated back'
  //         }
  //       ]
  //     };

• index.js:203-208 (schema)

  Input schema definition for the 'back' tool in the tools list, accepting an empty object.

  //             name: 'back',
  //             description: 'Navigate back in browser history',
  //             inputSchema: {
  //               type: 'object',
  //               properties: {}
  //             }

• index.js:257-258 (registration)

  Registration of the 'back' tool handler in the CallToolRequestSchema switch statement.

  //           case 'back':
  //             return await this.back();

• index-multi-enhanced.js:971-984 (handler)

  Enhanced handler for 'back' tool supporting tabId, retrieves specific page and calls goBack().

  //   async back(args = {}) {
  //     this.ensureBrowserRunning();
  //     const { tabId } = args;
  //     const page = this.getPage(tabId);
  //     await page.goBack();
      
  //     return {
  //       content: [
  //         {
  //           type: 'text',
  //           text: `Navigated back in tab '${tabId || this.activeTabId}'`
  //         }
  //       ]
  //     };

• index-multi-enhanced.js:372-381 (schema)

  Input schema for enhanced 'back' tool allowing optional tabId.

  //             name: 'back',
  //             description: 'Navigate back in browser history',
  //             inputSchema: {
  //               type: 'object',
  //               properties: {
  //                 tabId: {
  //                   type: 'string',
  //                   description: 'Tab ID (uses active tab if not provided)'
  //                 }
  //               }