diff --git a/nix/homeModules/common/zen-browser.nix b/nix/homeModules/common/zen-browser.nix
index f441838d..bfc4470b 100644
--- a/nix/homeModules/common/zen-browser.nix
+++ b/nix/homeModules/common/zen-browser.nix
@@ -67,6 +67,7 @@ in
         "layout.css.devPixelsPerPx" = 1.1;
         "browser.startup.page" = 1;
         "browser.translations.automaticallyPopup" = false;
+        "browser.tabs.closeWindowWithLastTab" = true;
 
         # open links in new window
         # this works a lot better with xmonad where I have a bunch of windows