From e3467c08f6fc54bce27c32c460d70a0befcc5894 Mon Sep 17 00:00:00 2001
From: AHMET YILMAZ <tawfik@kidocode.com>
Date: Wed, 17 Sep 2025 17:40:38 +0800
Subject: [PATCH] #1490 feat(ManagedBrowser): add viewport size configuration
 for browser launch

---
 crawl4ai/browser_manager.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crawl4ai/browser_manager.py b/crawl4ai/browser_manager.py
index 48737fcb..46efebd4 100644
--- a/crawl4ai/browser_manager.py
+++ b/crawl4ai/browser_manager.py
@@ -369,6 +369,9 @@ class ManagedBrowser:
             ]
             if self.headless:
                 flags.append("--headless=new")
+            # Add viewport flag if specified in config
+            if self.browser_config.viewport_height and self.browser_config.viewport_width:
+                flags.append(f"--window-size={self.browser_config.viewport_width},{self.browser_config.viewport_height}")
             # merge common launch flags
             flags.extend(self.build_browser_flags(self.browser_config))
         elif self.browser_type == "firefox":