diff --git a/monospace.user.css b/monospace.user.css
index ca6cf61..cf39b53 100644
--- a/monospace.user.css
+++ b/monospace.user.css
@@ -2,7 +2,7 @@
 @name           Default monospace font
 @namespace      git.mfocko.xyz/mfocko/usercss
 @updateURL      https://git.mfocko.xyz/mfocko/usercss/raw/branch/main/monospace.user.css
-@version        1.15.11
+@version        1.16.0
 @description    Replace default monospace font on majority of websites.
 @author         mfocko <me@mfocko.xyz>
 @preprocessor   stylus
@@ -315,3 +315,10 @@ domain("dashboard.stg.packit.dev") {
         font-feature-settings: font-features;
     }
 }
+
+@-moz-document domain("editor.p5js.org") {
+    .CodeMirror pre.CodeMirror-line, .CodeMirror pre.CodeMirror-line-like {
+        font-family: monospace-font !important;
+        font-feature-settings: font-features;
+    }
+}