Fixed: Show default poster view in Firefox

src/UI/AddSeries/SearchResultViewTemplate.hbs

@@ -2,8 +2,7 @@
     <div class="row">
         <div class="col-md-2">
             <a href="{{tvdbUrl}}" target="_blank">
-                <img class="new-series-poster" src="{{remotePoster}}"
-                {{defaultImg}} >
+                {{poster}}
             </a>
         </div>
         <div class="col-md-10">

src/UI/AddSeries/addSeries.less

@@ -65,7 +65,7 @@
       }
     }
 
-    .new-series-poster {
+    .series-poster {
       min-width  : 138px;
       min-height : 203px;
       max-width  : 138px;

src/UI/Handlebars/Helpers/Series.js

@@ -7,13 +7,14 @@ define(
     ], function (Handlebars, StatusModel, _) {
         Handlebars.registerHelper('poster', function () {
 
+            var placeholder = StatusModel.get('urlBase') + '/Content/Images/poster-dark.png';
             var poster = _.where(this.images, {coverType: 'poster'});
 
             if (poster[0]) {
-                return poster[0].url;
+                return new Handlebars.SafeString('<img class="series-poster" src="{0}" {1}>'.format(poster[0].url, Handlebars.helpers.defaultImg.call()));
             }
 
-            return undefined;
+            return new Handlebars.SafeString('<img class="series-poster placeholder-image" src="{0}">'.format(placeholder));
         });
 
         Handlebars.registerHelper('traktUrl', function () {

src/UI/Series/Delete/DeleteSeriesTemplate.hbs

@@ -7,7 +7,7 @@
 
         <div class="row">
             <div class="col-sm-3 hidden-xs">
-                <img class="series-poster" src="{{poster}}" {{defaultImg}}>
+                {{poster}}
             </div>
             <div class="col-sm-9">
                 <div class="form-horizontal">

src/UI/Series/Edit/EditSeriesViewTemplate.hbs

@@ -6,7 +6,7 @@
     <div class="modal-body edit-series-modal">
         <div class="row">
             <div class="col-sm-3 hidden-xs">
-                <img class="series-poster" src="{{poster}}" {{defaultImg}}>
+                {{poster}}
             </div>
             <div class="col-sm-9">
                 <div class="form-horizontal">

src/UI/Series/Index/Overview/SeriesOverviewItemViewTemplate.hbs

@@ -2,7 +2,7 @@
     <div class="row">
         <div class="col-md-2 col-xs-3">
             <a href="{{route}}">
-                <img class="series-poster" src="{{poster}}" {{defaultImg}}>
+                {{poster}}
             </a>
         </div>
         <div class="col-md-10 col-xs-9">

src/UI/Series/Index/Posters/SeriesPostersItemViewTemplate.hbs

@@ -9,7 +9,7 @@
                 <div class="ended-banner">Ended</div>
             {{/unless_eq}}
             <a href="{{route}}">
-                <img class="series-poster" src="{{poster}}" {{defaultImg}}>
+                {{poster}}
                 <div class="center title">{{title}}</div>
             </a>
             <div class="hidden-title x-title">