diff --git a/browser_patches/firefox/BUILD_NUMBER b/browser_patches/firefox/BUILD_NUMBER
index 15f05f40fecf8..ca298e35decf2 100644
--- a/browser_patches/firefox/BUILD_NUMBER
+++ b/browser_patches/firefox/BUILD_NUMBER
@@ -1 +1 @@
-1083
+1084
diff --git a/browser_patches/firefox/preferences/playwright.cfg b/browser_patches/firefox/preferences/playwright.cfg
index c4b38438ba50f..f974712155765 100644
--- a/browser_patches/firefox/preferences/playwright.cfg
+++ b/browser_patches/firefox/preferences/playwright.cfg
@@ -3,6 +3,9 @@
 // Use light theme by default.
 pref("ui.systemUsesDarkTheme", 0);
 
+// Do not use system colors - they are affected by themes.
+pref("ui.use_standins_for_native_colors", true);
+
 pref("dom.push.serverURL", "");
 pref("services.settings.server", "");
 pref("browser.safebrowsing.provider.mozilla.updateURL", "");