diff --git a/options/custom/programs/firefox/.common.nix b/options/custom/programs/firefox/.common.nix
index ea109ca..f2292ef 100644
--- a/options/custom/programs/firefox/.common.nix
+++ b/options/custom/programs/firefox/.common.nix
@@ -80,6 +80,12 @@ with lib; {
     containersForce = true;
 
     containers = {
+      master = {
+        color = "pink";
+        icon = "circle";
+        id = 0;
+      };
+
       edu = {
         color = "orange";
         icon = "fruit";