diff --git a/xpfe/components/history/public/nsISHContainer.idl b/xpfe/components/history/public/nsISHContainer.idl
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/xpfe/components/history/public/nsISHEntry.idl b/xpfe/components/history/public/nsISHEntry.idl
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/xpfe/components/history/public/nsISHTransaction.idl b/xpfe/components/history/public/nsISHTransaction.idl
deleted file mode 100644
index e69de29bb2d..00000000000