Firefox fixes

app/css/app.css

@@ -2535,7 +2535,8 @@ img.chat_modal_participant_photo {
 .tg_range_wrap {
   line-height: 18px;
 }
-input.tg_range {
+input.tg_range,
+input.tg_range::-moz-range-track {
   cursor: pointer;
   outline: none !important;
   -webkit-appearance: none;
@@ -2543,15 +2544,14 @@ input.tg_range {
   max-width: 362px;
   display: inline-block;
   background: #c7c7c7;
-  margin: 0;
   height: 3px;
   line-height: 18px;
   vertical-align: top;
   margin: 8px 0;
   border-radius: 2px;
 }
-
 input.tg_range::-webkit-slider-thumb {
+  border: 0;
   -webkit-appearance: none;
   background: #568cb5;
   width: 12px;
@@ -2560,6 +2560,15 @@ input.tg_range::-webkit-slider-thumb {
   overflow: hidden;
 }
 
+input.tg_range::-moz-range-thumb {
+  border: 0;
+  background: #568cb5;
+  width: 12px;
+  height: 12px;
+  border-radius: 6px;
+  overflow: hidden;
+}
+
 .icon-volume-outer {
   display: inline-block;
   background: #c7c7c7;

app/js/controllers.js

@@ -1491,8 +1491,10 @@ angular.module('myApp.controllers', [])
 
       if (settings[1]) {
         $scope.notify.volume = 0;
-      } else {
+      } else if (settings[3] !== false) {
         $scope.notify.volume = settings[3] > 0 && Math.ceil(settings[3] * 10) || 0;
+      } else {
+        $scope.notify.volume = 5;
       }
 
       $scope.notify.volumeOf4 = function () {