diff --git a/1.3-Implementation.md b/1.3-Implementation.md
index cd3d8fb..632dfed 100644
--- a/1.3-Implementation.md
+++ b/1.3-Implementation.md
@@ -20,6 +20,7 @@
 - Some items are deleted when Firefox closes (section 2800)
   * We do not delete your passwords, or cookies or site settings...
   * BUT... and this may come as a nasty surprise to some, we DO delete history - download, form and browsing histories. If you want to keep them, comment out those preferences
+    * Note: Since FF55 we disabled form history
 
 :exclamation: PRETTY IMPORTANT: Other preferences may cause site breakage, but nothing that can't be fixed. You won't "lose" anything...- it's not the end of the world.