browser: fix docs chrome-relay references, dedupe config load

docs/gateway/troubleshooting.md

@@ -289,7 +289,7 @@ Look for:
 
 - Valid browser executable path.
 - CDP profile reachability.
-- Extension relay tab attachment for `profile="chrome-relay"`.
+- Extension relay tab attachment (if an extension relay profile is configured).
 
 Common signatures:
 

docs/tools/browser-linux-troubleshooting.md

@@ -25,7 +25,7 @@ Note, selecting 'chromium-browser' instead of 'chromium'
 chromium-browser is already the newest version (2:1snap1-0ubuntu2).
 ```
 
-This is NOT a real browser — it's just a wrapper.
+This is NOT a real browser - it's just a wrapper.
 
 ### Solution 1: Install Google Chrome (Recommended)
 
@@ -123,7 +123,7 @@ curl -s http://127.0.0.1:18791/tabs
 
 ### Problem: "Chrome extension relay is running, but no tab is connected"
 
-You’re using the `chrome-relay` profile (extension relay). It expects the OpenClaw
+You're using an extension relay profile. It expects the OpenClaw
 browser extension to be attached to a live tab.
 
 Fix options:

docs/tools/chrome-extension.md

@@ -62,19 +62,14 @@ After upgrading OpenClaw:
 
 ## Use it (set gateway token once)
 
-OpenClaw ships with a built-in browser profile named `chrome-relay` that targets the extension relay on the default port.
+To use the extension relay, create a browser profile for it:
 
 Before first attach, open extension Options and set:
 
 - `Port` (default `18792`)
 - `Gateway token` (must match `gateway.auth.token` / `OPENCLAW_GATEWAY_TOKEN`)
 
-Use it:
-
-- CLI: `openclaw browser --browser-profile chrome-relay tabs`
-- Agent tool: `browser` with `profile="chrome-relay"`
-
-If you want a different name or a different relay port, create your own profile:
+Then create a profile:
 
 ```bash
 openclaw browser create-profile \
@@ -84,6 +79,11 @@ openclaw browser create-profile \
   --color "#00AA00"
 ```
 
+Use it:
+
+- CLI: `openclaw browser --browser-profile my-chrome tabs`
+- Agent tool: `browser` with `profile="my-chrome"`
+
 ### Custom Gateway ports
 
 If you're using a custom gateway port, the extension relay port is automatically derived:

src/agents/tools/browser-tool.ts

@@ -293,11 +293,6 @@ function shouldPreferHostForProfile(profileName: string | undefined) {
   return capabilities.requiresRelay || capabilities.usesChromeMcp;
 }
 
-function isHostOnlyProfileName(profileName: string | undefined) {
-  // User-browser profiles (existing-session, extension relay) are host-only.
-  return shouldPreferHostForProfile(profileName);
-}
-
 export function createBrowserTool(opts?: {
   sandboxBridgeUrl?: string;
   allowHostControl?: boolean;
@@ -331,7 +326,9 @@ export function createBrowserTool(opts?: {
       if (requestedNode && target && target !== "node") {
         throw new Error('node is only supported with target="node".');
       }
-      if (isHostOnlyProfileName(profile)) {
+      // User-browser profiles (existing-session, extension relay) are host-only.
+      const isUserBrowserProfile = shouldPreferHostForProfile(profile);
+      if (isUserBrowserProfile) {
         if (requestedNode || target === "node") {
           throw new Error(`profile="${profile}" only supports the local host browser.`);
         }
@@ -340,11 +337,10 @@ export function createBrowserTool(opts?: {
             `profile="${profile}" cannot use the sandbox browser; use target="host" or omit target.`,
           );
         }
-      }
-      if (!target && !requestedNode && shouldPreferHostForProfile(profile)) {
-        // Local host user-browser profiles should not silently bind to sandbox/node browsers.
+        if (!target && !requestedNode) {
           target = "host";
         }
+      }
 
       const nodeTarget = await resolveBrowserNodeTarget({
         requestedNode: requestedNode ?? undefined,