diff --git a/options.html b/options.html
index 447cbf563..388e301ad 100644
--- a/options.html
+++ b/options.html
@@ -3945,8 +3945,9 @@ boolean</p><p><span class="emphasis"><em>Default:</em></span>
 &lt;home-manager/modules/programs/firefox.nix&gt;
 </a></code></td></tr></table></dd><dt><span class="term"><a id="opt-programs.firefox.package"></a><a class="term" href="options.html#opt-programs.firefox.package"><code class="option">programs.firefox.package</code></a></span></dt><dd><p>The Firefox package to use. If state version ≥ 19.09 then
 this should be a wrapped Firefox package. For earlier state
-versions it should be an unwrapped Firefox package.</p><p><span class="emphasis"><em>Type:</em></span>
-package</p><p><span class="emphasis"><em>Default:</em></span>
+versions it should be an unwrapped Firefox package.
+Set to &lt;literal&gt;null&lt;/literal&gt; to disable installing Firefox.</p><p><span class="emphasis"><em>Type:</em></span>
+null or package</p><p><span class="emphasis"><em>Default:</em></span>
 <code class="literal">pkgs.firefox</code></p><p><span class="emphasis"><em>Example:</em></span></p><pre class="programlisting">pkgs.firefox.override {
   # See nixpkgs' firefox/wrapper.nix to check which options you can use
   cfg = {