diff --git a/src/3p-filters.html b/src/3p-filters.html
index f92af2eed..b5576013a 100644
--- a/src/3p-filters.html
+++ b/src/3p-filters.html
@@ -44,6 +44,7 @@
             <a type="text/plain" target="_blank" href=""></a>
             <a href="" style="display: none;" target="_blank"></a>: <!--
          --><span class="dim"></span><!--
+         --><span class="status unsecure" style="display: none;">https</span><!--
          --><span class="status new" style="display: none;" data-i18n="3pExternalListNew"></span><!--
          --><span class="status obsolete" style="display: none;" data-i18n="3pExternalListObsolete"></span><!--
          --><span class="status purge" style="display: none;" data-i18n="3pExternalListPurge"></span>
diff --git a/src/css/3p-filters.css b/src/css/3p-filters.css
index b605cec3a..9816f00e9 100644
--- a/src/css/3p-filters.css
+++ b/src/css/3p-filters.css
@@ -106,7 +106,7 @@ body[dir=rtl] #buttonApply {
     display: none;
     }
 span.status {
-    margin: 0 0 0 1em;
+    margin: 0 0 0 0.5em;
     border: 1px solid transparent;
     padding: 1px 2px;
     display: inline-block;
@@ -114,6 +114,13 @@ span.status {
     line-height: 1;
     opacity: 0.7;
 }
+span.unsecure {
+    background-color: #fee;
+    border-color: #fcc;
+    color: #f00;
+    text-decoration: line-through;
+    text-decoration-style: dotted;
+    }
 span.purge {
     border-color: #ddd;
     color: #444;
diff --git a/src/js/3p-filters.js b/src/js/3p-filters.js
index b5e1cd725..67350baaf 100644
--- a/src/js/3p-filters.js
+++ b/src/js/3p-filters.js
@@ -41,19 +41,19 @@ var hasCachedContent = false;
 
 var onMessage = function(msg) {
     switch ( msg.what ) {
-        case 'allFilterListsReloaded':
-            renderFilterLists();
-            break;
+    case 'allFilterListsReloaded':
+        renderFilterLists();
+        break;
 
-        case 'forceUpdateAssetsProgress':
-            renderBusyOverlay(true, msg.progress);
-            if ( msg.done ) {
-                messager.send({ what: 'reloadAllFilters' });
-            }
-            break;
+    case 'forceUpdateAssetsProgress':
+        renderBusyOverlay(true, msg.progress);
+        if ( msg.done ) {
+            messager.send({ what: 'reloadAllFilters' });
+        }
+        break;
 
-        default:
-            break;
+    default:
+        break;
     }
 };
 
@@ -115,10 +115,20 @@ var renderFilterLists = function() {
             .replace('{{total}}', !isNaN(+entry.entryCount) ? renderNumber(entry.entryCount) : '?');
         elem.text(text);
 
+        // https://github.com/gorhill/uBlock/issues/78
+        // Badge for non-secure connection
+        var remoteURL = listKey;
+        if ( remoteURL.lastIndexOf('http:', 0) !== 0 ) {
+            remoteURL = entry.homeURL || '';
+        }
+        if ( remoteURL.lastIndexOf('http:', 0) === 0 ) {
+            li.descendants('span.status.unsecure').css('display', '');
+        }
+
         // https://github.com/chrisaljoudi/uBlock/issues/104
         var asset = listDetails.cache[listKey] || {};
 
-        // Update status
+        // Badge for update status
         if ( entry.off !== true ) {
             if ( asset.repoObsolete ) {
                 li.descendants('span.status.new').css('display', '');