diff --git a/user.js b/user.js
index 1b8f9fd..c01d64d 100644
--- a/user.js
+++ b/user.js
@@ -97,6 +97,7 @@ user_pref("browser.contentblocking.report.hide_vpn_banner", true);
 user_pref("browser.contentblocking.report.show_mobile_app", false);
 user_pref("identity.mobilepromo.android", "");
 user_pref("identity.mobilepromo.ios", "");
+user_pref("identity.sendtabpromo.url", "");
 
 // Telemetry
 user_pref("browser.ping-centre.telemetry", false);