diff --git a/.config/firefox/userContent.css b/.config/firefox/userContent.css
new file mode 100644
index 0000000..bc1129d
--- /dev/null
+++ b/.config/firefox/userContent.css
@@ -0,0 +1,6 @@
+/* colors based on plastic color scheme */
+
+:root {
+    scrollbar-color: rgb(158, 196, 0) rgb(33, 37, 43);
+}
+