chore: document user-data-dir

README.md

@@ -59,6 +59,18 @@ code-insiders --add-mcp '{"name":"playwright","command":"npx","args":["@playwrig
 
 After installation, the Playwright MCP server will be available for use with your GitHub Copilot agent in VS Code.
 
+### User data directory
+
+Playwright MCP will launch Chrome browser with the new profile, located at
+
+```
+- `%USERPROFILE%\AppData\Local\ms-playwright\mcp-chrome-profile` on Windows
+- `~/Library/Caches/ms-playwright/mcp-chrome-profile` on macOS
+- `~/.cache/ms-playwright/mcp-chrome-profile` on Linux
+```
+
+All the logged in information will be stored in that profile, you can delete it between sessions if you'dlike to clear the offline state.
+
 
 ### Running headless browser (Browser without GUI).
 

src/program.ts

@@ -69,7 +69,7 @@ async function userDataDir() {
     cacheDirectory = process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local');
   else
     throw new Error('Unsupported platform: ' + process.platform);
-  const result = path.join(cacheDirectory, 'ms-playwright', 'mcp-chromium-profile');
+  const result = path.join(cacheDirectory, 'ms-playwright', 'mcp-chrome-profile');
   await fs.promises.mkdir(result, { recursive: true });
   return result;
 }