diff --git a/darwin/README.md b/darwin/README.md
index 520dff31..8a153265 100644
--- a/darwin/README.md
+++ b/darwin/README.md
@@ -8,6 +8,7 @@ So you should manually install followings.
 - [vscode](https://code.visualstudio.com/download)
 - [zed-editor](https://zed.dev/download)
 - [podman-desktop](https://podman-desktop.io/downloads)
+- [Firefox](https://www.mozilla.org/ja/firefox/all/desktop-release/osx/ja/)
 
 ## Limitations
 
diff --git a/home-manager/packages.nix b/home-manager/packages.nix
index ad1e5149..f2fdd79a 100644
--- a/home-manager/packages.nix
+++ b/home-manager/packages.nix
@@ -141,7 +141,7 @@
     kitty
     # foot is only provided for Linux wayland
 
-    firefox
+    # Don't install firefox via nixpkgs for darwin, it is broken https://github.com/NixOS/nixpkgs/blob/bac526a0fe6da6b10cfe2454f62a0defdbf1d898/pkgs/applications/networking/browsers/firefox/packages.nix#L23
 
     # - You can use major Nerd Fonts as `pkgs.nerdfonts.override ...`
     # - Should have at least 1 composite font that includes Monospace + Japanese + Nerd fonts,