diff --git a/public/index.html b/public/index.html
index 1acd0e55..a57de338 100644
--- a/public/index.html
+++ b/public/index.html
@@ -70,6 +70,7 @@
 			browerInfo.version = document.documentMode + ''
 		}else if(userAgent.indexOf("Firefox") > -1){
 			browerInfo.type = "Firefox"
+			browerInfo.version = userAgent.match(/Firefox\/([\d.]+)/)[1]
 		}else if(userAgent.indexOf("Opera") > -1){
 			browerInfo.type = "Opera"
 			browerInfo.version = userAgent.match(/Opera\/([\d.]+)/)[1]