diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49c98f3..972a602 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,10 +3,12 @@
 ### Added
 
 ### Changed
+- `@window_size` attribute is moved from Ferrum viewport size is still inherited [#253]
 
 ### Fixed
 - Detect whether element is in the viewport and clickable before click [#251]
 - Remember parentNode in case onChange callback mutates DOM [#227]
+- Correctly open devtools page when calling `debug` [#252]
 
 ### Removed
 
diff --git a/lib/capybara/cuprite/browser.rb b/lib/capybara/cuprite/browser.rb
index 12e08a4..d817a20 100644
--- a/lib/capybara/cuprite/browser.rb
+++ b/lib/capybara/cuprite/browser.rb
@@ -11,7 +11,7 @@ class Browser < Ferrum::Browser
                   find_modal accept_confirm dismiss_confirm accept_prompt
                   dismiss_prompt reset_modals] => :page
 
-      attr_reader :url_blacklist, :url_whitelist
+      attr_reader :url_blacklist, :url_whitelist, :window_size
       alias url_blocklist url_blacklist
       alias url_allowlist url_whitelist
 
@@ -22,6 +22,7 @@ def initialize(options = nil)
         self.url_whitelist = options[:url_whitelist]
 
         super
+        @window_size = @options.window_size
         @page = false
       end
 
@@ -38,6 +39,7 @@ def page
 
       def reset
         super
+        @window_size = options.window_size
         @page = attach_page
       end
 
@@ -46,6 +48,11 @@ def quit
         @page = false
       end
 
+      def resize(**options)
+        @window_size = [options[:width], options[:height]]
+        super
+      end
+
       def url_whitelist=(patterns)
         @url_whitelist = prepare_wildcards(patterns)
         page.network.whitelist = @url_whitelist if @client && @url_whitelist.any?
diff --git a/lib/capybara/cuprite/page.rb b/lib/capybara/cuprite/page.rb
index 3a4ce09..8f2977e 100644
--- a/lib/capybara/cuprite/page.rb
+++ b/lib/capybara/cuprite/page.rb
@@ -134,6 +134,9 @@ def title
       def prepare_page
         super
 
+        width, height = @browser.window_size
+        resize(width: width, height: height)
+
         if @browser.url_blacklist.any?
           network.blacklist = @browser.url_blacklist
         elsif @browser.url_whitelist.any?