diff --git a/browser_patches/firefox-beta/BUILD_NUMBER b/browser_patches/firefox-beta/BUILD_NUMBER
index fa1cb8949a..578e5c10bf 100644
--- a/browser_patches/firefox-beta/BUILD_NUMBER
+++ b/browser_patches/firefox-beta/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1304
-Changed: aslushnikov@gmail.com Wed Nov 10 21:36:03 HST 2021
+1305
+Changed: aslushnikov@gmail.com Thu Nov 11 15:24:13 HST 2021
diff --git a/browser_patches/firefox-beta/preferences/playwright.cfg b/browser_patches/firefox-beta/preferences/playwright.cfg
index 36617fd1a1..dd8379fa19 100644
--- a/browser_patches/firefox-beta/preferences/playwright.cfg
+++ b/browser_patches/firefox-beta/preferences/playwright.cfg
@@ -12,6 +12,8 @@ pref("datareporting.policy.dataSubmissionPolicyBypassNotification", true);
 pref("browser.tabs.remote.useCrossOriginEmbedderPolicy", false);
 pref("browser.tabs.remote.useCrossOriginOpenerPolicy", false);
 
+pref("browser.tabs.remote.separatePrivilegedMozillaWebContentProcess", false);
+
 // =================================================================
 // =================================================================
 
diff --git a/browser_patches/firefox/BUILD_NUMBER b/browser_patches/firefox/BUILD_NUMBER
index 05561a1fad..ed71edfe68 100644
--- a/browser_patches/firefox/BUILD_NUMBER
+++ b/browser_patches/firefox/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1305
-Changed: lushnikov@chromium.org Wed Nov 10 21:36:03 HST 2021
+1306
+Changed: lushnikov@chromium.org Thu Nov 11 15:24:13 HST 2021
diff --git a/browser_patches/firefox/preferences/playwright.cfg b/browser_patches/firefox/preferences/playwright.cfg
index 36617fd1a1..dd8379fa19 100644
--- a/browser_patches/firefox/preferences/playwright.cfg
+++ b/browser_patches/firefox/preferences/playwright.cfg
@@ -12,6 +12,8 @@ pref("datareporting.policy.dataSubmissionPolicyBypassNotification", true);
 pref("browser.tabs.remote.useCrossOriginEmbedderPolicy", false);
 pref("browser.tabs.remote.useCrossOriginOpenerPolicy", false);
 
+pref("browser.tabs.remote.separatePrivilegedMozillaWebContentProcess", false);
+
 // =================================================================
 // =================================================================