Fix networkidle timeouts and Firefox cookie domain normalization

- Replace networkidle with domcontentloaded + 5s race in goto, click,
  and session_restore — SPAs with persistent connections (LinkedIn,
  Gmail) never reach networkidle
- Normalize .www. cookie domains in Firefox importer — Playwright
  silently drops cookies with .www.example.com domains

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/browser.ts

@@ -394,7 +394,12 @@ export class ClaudeBrowser {
 
   async goto(url: string): Promise<{ url: string; title: string }> {
     const page = this.ensurePage();
-    await page.goto(url, { waitUntil: 'networkidle' });
+    await page.goto(url, { waitUntil: 'domcontentloaded' });
+    // Best-effort wait for network to settle — SPAs with persistent connections
+    // (LinkedIn, Twitter, Gmail) never reach networkidle, so cap at 5s
+    await Promise.race([page.waitForLoadState('networkidle'), page.waitForTimeout(5000)]).catch(
+      () => {}
+    );
     return { url: page.url(), title: await page.title() };
   }
 
@@ -402,7 +407,9 @@ export class ClaudeBrowser {
     const page = this.ensurePage();
     await this.previewAction(selector, 'CLICK');
     await page.click(selector);
-    await page.waitForLoadState('networkidle').catch(() => {});
+    await Promise.race([page.waitForLoadState('networkidle'), page.waitForTimeout(5000)]).catch(
+      () => {}
+    );
     return { url: page.url() };
   }
 

src/firefox.ts

@@ -283,10 +283,17 @@ export function toPlaywrightCookie(cookie: FirefoxCookie): {
     expires = -1;
   }
 
+  // Normalize domain: Firefox sometimes stores ".www.example.com" which Playwright
+  // won't match for "www.example.com". Strip ".www." prefix to ".example.com".
+  let domain = cookie.domain;
+  if (domain.startsWith('.www.')) {
+    domain = domain.slice(4); // ".www.example.com" -> ".example.com"
+  }
+
   return {
     name: cookie.name,
     value: cookie.value,
-    domain: cookie.domain,
+    domain,
     path: cookie.path,
     expires,
     secure: cookie.secure,

src/mcp.ts

@@ -665,7 +665,10 @@ server.tool(
 
     // Navigate to saved URL
     if (data.url) {
-      await page.goto(data.url, { waitUntil: 'networkidle' });
+      await page.goto(data.url, { waitUntil: 'domcontentloaded' });
+      await Promise.race([page.waitForLoadState('networkidle'), page.waitForTimeout(5000)]).catch(
+        () => {}
+      );
     }
 
     // Restore storage (runs in browser context)