diff --git a/docs/index.md b/docs/index.md
new file mode 100644
index 0000000..a59a330
--- /dev/null
+++ b/docs/index.md
@@ -0,0 +1,4 @@
+Vim Vixen is a Firefox add-on which allows you to easily navigate the web by
+keyboard. Since version 57, Firefox has migrated to the WebExtensions API and
+has dropped support for legacy add-ons. Vim Vixen is a new choice for Vim users
+since it uses the WebExtensions API.