diff --git a/instances/odin/hm.nix b/instances/odin/hm.nix
index 907f03b..1555605 100644
--- a/instances/odin/hm.nix
+++ b/instances/odin/hm.nix
@@ -106,6 +106,7 @@
     # ../../modules/hm/dwarf-fortress.nix
     ../../modules/hm/easyeffects.nix
     ../../modules/hm/firefox.nix
+    ../../modules/hm/vivaldi.nix
     # ../../modules/hm/fonts.nix
     # ../../modules/hm/gnome_shell.nix
     # ../../modules/hm/grobi.nix
diff --git a/instances/thor/hm.nix b/instances/thor/hm.nix
index 3999629..efd342c 100644
--- a/instances/thor/hm.nix
+++ b/instances/thor/hm.nix
@@ -94,6 +94,7 @@
     # ../../modules/hm/dwarf-fortress.nix
     ../../modules/hm/easyeffects.nix
     ../../modules/hm/firefox.nix
+    ../../modules/hm/vivaldi.nix
     ../../modules/hm/fonts.nix
     # ../../modules/hm/gnome_shell.nix
     # ../../modules/hm/grobi.nix
diff --git a/modules/hm/vivaldi.nix b/modules/hm/vivaldi.nix
new file mode 100644
index 0000000..27bf3f9
--- /dev/null
+++ b/modules/hm/vivaldi.nix
@@ -0,0 +1,3 @@
+{ pkgs, ... }: {
+  home.packages = [ pkgs.vivaldi pkgs.vivaldi-ffmpeg-codecs ];
+}
diff --git a/modules/hm/webapp.nix b/modules/hm/webapp.nix
index f89ebb4..9803f6f 100644
--- a/modules/hm/webapp.nix
+++ b/modules/hm/webapp.nix
@@ -2,12 +2,13 @@
 # Categories: https://specifications.freedesktop.org/menu-spec/latest/apa.html#main-category-registry
 let
   chrome-cmd = link: "${pkgs.google-chrome}/bin/google-chrome-stable --app=${link}";
-  firefox-cmd = link: "firefox --new-window ${link}";
+  vivaldi-cmd = link: "${pkgs.vivaldi}/bin/vivaldi --app=${link}";
+  # firefox-cmd = link: "firefox --new-window ${link}";
   webAppBuilder =
     { desktopName
     , name ? builtins.replaceStrings [ " " ] [ "_" ] desktopName
     , link
-    , cmd ? firefox-cmd
+    , cmd ? vivaldi-cmd
     , icon ? lib.toLower name
     , comment ? null
     , categories ? [ "Network" ]