fix: scope CDP tab sessions and simplify recording sessionId routing

extension/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.0.72
+
+### Bug Fixes
+
+- **Use runtime-scoped root CDP tab session IDs**: Root tab sessions now use `pw-tab-<scope>-<n>` instead of `pw-tab-<n>`, where scope is a random value generated once per extension runtime. This prevents session ID collisions across multiple connected Chrome profiles.
+
 ## 0.0.71
 
 ### Bug Fixes

extension/manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "Playwriter",
-  "version": "0.0.71",
+  "version": "0.0.72",
   "description": "Automate your Browser using Cursor, Claude, VS Code. More capable and context efficient than Playwright MCP.",
   "permissions": [
     "debugger",

extension/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mcp-extension",
-  "version": "0.0.71",
+  "version": "0.0.72",
   "description": "Playwright MCP Browser Extension",
   "private": true,
   "repository": {

extension/src/background.ts

@@ -66,6 +66,15 @@ async function detectBrowserName(): Promise<string> {
 }
 
 let identityPromise: Promise<ExtensionIdentity> | null = null
+const tabSessionScope = (() => {
+  const values = new Uint32Array(2)
+  crypto.getRandomValues(values)
+  return Array.from(values)
+    .map((value) => {
+      return value.toString(36)
+    })
+    .join('')
+})()
 
 async function getExtensionIdentity(): Promise<ExtensionIdentity> {
   if (identityPromise) {
@@ -1070,7 +1079,7 @@ async function attachTab(
     }
 
     const attachOrder = nextSessionId
-    const sessionId = `pw-tab-${nextSessionId++}`
+    const sessionId = `pw-tab-${tabSessionScope}-${nextSessionId++}`
 
     store.setState((state) => {
       const newTabs = new Map(state.tabs)