diff --git a/README.asciidoc b/README.asciidoc
index 85d147a9b..70c1df635 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -182,6 +182,7 @@ Active
 * Firefox addons (based on WebExtensions):
   https://addons.mozilla.org/en-GB/firefox/addon/vimium-ff/[Vimium-FF] (experimental),
   https://key.saka.io[Saka Key],
+  https://github.com/ueokande/vim-vixen[Vim Vixen],
   https://github.com/cmcaine/tridactyl[Tridactyl] (in early development, working
   on a https://bugzilla.mozilla.org/show_bug.cgi?id=1215061[better API] for
   keyboard integration in Firefox).