diff --git a/karabiner/karabiner.json b/karabiner/karabiner.json
index 4dc302a..35acb84 100644
--- a/karabiner/karabiner.json
+++ b/karabiner/karabiner.json
@@ -750,7 +750,7 @@
                                     "key_code": "f",
                                     "modifiers": { "mandatory": ["right_command", "right_control", "right_shift", "right_option"] }
                                 },
-                                "to": [{ "shell_command": "open -a Firefox" }],
+                                "to": [{ "shell_command": "open -a 'Zen Browser'" }],
                                 "type": "basic"
                             },
                             {