diff --git a/readme.md b/readme.md
index 8e3436c..ed58201 100644
--- a/readme.md
+++ b/readme.md
@@ -36,7 +36,7 @@ IceCat, IceDragon, Iceweasel, IE[Mobile], Iron, Jasmine, K-Meleon, Konqueror, Ki
 Links, Lunascape, Lynx, Maemo, Maxthon, Midori, Minimo, MIUI Browser, [Mobile] Safari, 
 Mosaic, Mozilla, Netfront, Netscape, NetSurf, Nokia, OmniWeb, Opera [Mini/Mobi/Tablet], 
 PhantomJS, Phoenix, Polaris, QQBrowser, Quark, RockMelt, Silk, Skyfire, SeaMonkey, Sleipnir, 
-SlimBrowser, Swiftfox, Tizen, UCBrowser, Vivaldi, w3m, WeChat, Yandex
+SlimBrowser, Swiftfox, Tizen, UCBrowser, Vivaldi, w3m, Waterfox, WeChat, Yandex
 
 # 'browser.version' determined dynamically
 ```