diff --git a/css/css-multicol/crashtests/first-letter-column-span-fieldset.html b/css/css-multicol/crashtests/first-letter-column-span-fieldset.html
new file mode 100644
index 00000000000000..71815a18f27438
--- /dev/null
+++ b/css/css-multicol/crashtests/first-letter-column-span-fieldset.html
@@ -0,0 +1,16 @@
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=2008625">
+<style>
+*:last-of-type {
+  columns: 474px 1;
+}
+*:valid {
+  column-span: all;
+}
+*::first-letter { }
+</style>
+<data>
+<form></form>
+</data>
+<u>
+<fieldset></fieldset>
+</u>