diff --git a/README.md b/README.md
index eb95071..08df044 100644
--- a/README.md
+++ b/README.md
@@ -177,7 +177,10 @@ Playwright MCP server supports following arguments. They can be provided in the
                                   Use 0.0.0.0 to bind to all interfaces.
   --ignore-https-errors           ignore https errors
   --isolated                      keep the browser profile in memory, do not
-                                  save it to disk.
+                                  save it to disk. This is the default.
+  --no-isolated                   use a persistent browser profile. Enables
+                                  features like Push API that require
+                                  non-incognito mode.
   --image-responses <mode>        whether to send image responses to the client.
                                   Can be "allow" or "omit", Defaults to "allow".
   --no-snapshots                  disable automatic page snapshots after
diff --git a/src/program.ts b/src/program.ts
index 452d09f..d52ad3c 100644
--- a/src/program.ts
+++ b/src/program.ts
@@ -44,7 +44,8 @@ program
     .option('--headless', 'run browser in headless mode, headed by default')
     .option('--host <host>', 'host to bind server to. Default is localhost. Use 0.0.0.0 to bind to all interfaces.')
     .option('--ignore-https-errors', 'ignore https errors')
-    .option('--isolated', 'keep the browser profile in memory, do not save it to disk.')
+    .option('--isolated', 'keep the browser profile in memory, do not save it to disk. This is the default.')
+    .option('--no-isolated', 'use a persistent browser profile. Enables features like Push API that require non-incognito mode.')
     .option('--image-responses <mode>', 'whether to send image responses to the client. Can be "allow" or "omit", Defaults to "allow".')
     .option('--no-snapshots', 'disable automatic page snapshots after interactive operations like clicks. Use browser_snapshot tool for explicit snapshots.')
     .option('--max-snapshot-tokens <tokens>', 'maximum number of tokens allowed in page snapshots before truncation. Use 0 to disable truncation. Default is 10000.', parseInt)