diff --git a/src/browser/app/profile/better-fox.js b/src/browser/app/profile/better-fox.js
index d3a9824dc..2e028747b 100644
--- a/src/browser/app/profile/better-fox.js
+++ b/src/browser/app/profile/better-fox.js
@@ -158,7 +158,6 @@ pref("browser.shell.checkDefaultBrowser", false);
 pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
 pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
 pref("browser.preferences.moreFromMozilla", false);
-pref("browser.tabs.tabmanager.enabled", false);
 pref("browser.aboutConfig.showWarning", false);
 pref("browser.aboutwelcome.enabled", false);
 
diff --git a/src/browser/app/profile/zen-browser.js b/src/browser/app/profile/zen-browser.js
index 964985926..0a59b5700 100644
--- a/src/browser/app/profile/zen-browser.js
+++ b/src/browser/app/profile/zen-browser.js
@@ -236,3 +236,8 @@ pref("network.fetchpriority.enabled", true);
 
 // No Proxy should be default, Use system proxy allows antivirus, virus or system proxy to MITM or slowing down Zen
 pref("network.proxy.type", 0);
+
+// ZEN EXPERIMENTAL:
+
+pref("security.tls.enable_kyber", true);
+pref("network.http.http3.enable_kyber", true);
diff --git a/src/browser/base/content/zen-components b/src/browser/base/content/zen-components
index cfdac0169..612abc81e 160000
--- a/src/browser/base/content/zen-components
+++ b/src/browser/base/content/zen-components
@@ -1 +1 @@
-Subproject commit cfdac0169024545dddab87d4ebc8110eaa3ca5a3
+Subproject commit 612abc81e78ccdfbdf4d3c0bf6b37e94a87ed1c2