diff --git a/README.md b/README.md
index 817fecb..ff4ee0e 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,8 @@ Then redeploy the app, and automated e-mail sending should work:
 
 * **One instance per server.** LiveKit requires host-published ports (7881, 7882, 443, 30000-30009) which can only be bound once per host.
 * **Server must have a direct public IP.** LiveKit's built-in TURN server does not work on servers behind a NAT gateway due to hairpin NAT issues. Configuring hairpin NAT on the gateway may be possible but has not been successfully tested yet.
+* **Mobile browser must be Chrome** - there are various open issues wrt Firefox and WebRTC, so on mobile you have
+to use a chromium based browser, else the connections fail!
 
 ## Network ports