diff --git a/home/programs/firefox.nix b/home/programs/firefox.nix
index 8b181bb..20ca739 100644
--- a/home/programs/firefox.nix
+++ b/home/programs/firefox.nix
@@ -159,6 +159,15 @@
       };
       userContent = pkgs.lib.fileContents ./firefox/userContent.css;
     };
+    phone = {
+      name = "phone";
+      id = 3;
+      isDefault = false;
+      userChrome = pkgs.lib.fileContents ./firefox/kioskLikeUserChrome.css;
+      settings = {
+        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
+      };
+    };
     toggl = {
       name = "toggl";
       id = 1;
diff --git a/home/windowManager/i3.nix b/home/windowManager/i3.nix
index 06b6cfa..8d20ec8 100644
--- a/home/windowManager/i3.nix
+++ b/home/windowManager/i3.nix
@@ -157,6 +157,7 @@ in {
       "3:💬" = [
         { class = "^chat$"; }
         { class = "^Signal$"; }
+        { class = "^phone$"; }
       ];
       "4:✉️" = [
         { class = "^Thunderbird$"; }
diff --git a/home/xdg.nix b/home/xdg.nix
index cf3f837..ce8a21d 100644
--- a/home/xdg.nix
+++ b/home/xdg.nix
@@ -92,6 +92,11 @@
       type = "Application";
       exec = "${pkgs.chromium}/bin/chromium --class=\"chat\" --new-window --new-window --app=https://jitsi.werkraum-media.de/codappix";
     };
+    phone = {
+      name = "Phone";
+      type = "Application";
+      exec = "${pkgs.firefox}/bin/firefox --class=\"phone\" --new-instance -P phone https://app.sipgate.com/w3/phone/phone";
+    };
     toggl = {
       name = "Toggl Time Tracking";
       type = "Application";