diff --git a/src/js/contentscript-end.js b/src/js/contentscript-end.js
index cc383238d..6d92b137e 100644
--- a/src/js/contentscript-end.js
+++ b/src/js/contentscript-end.js
@@ -19,7 +19,7 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global vAPI */
+/* global vAPI, HTMLDocument */
 
 /******************************************************************************/
 
@@ -62,7 +62,35 @@ var messager = vAPI.messaging.channel('contentscript-end.js');
 
 /******************************************************************************/
 
-// ABP cosmetic filters
+// https://github.com/gorhill/uBlock/issues/789
+// Be sure that specific cosmetic filters are still applied.
+// Executed once, then flushed from memory.
+
+(function() {
+    // Were there specific cosmetic filters?
+    var text = vAPI.specificHideStyleText;
+    if ( typeof text !== 'string' ) {
+        return;
+    }
+    vAPI.specificHideStyleText = undefined;
+    // Is our style tag still available?
+    var style = document.getElementById('ublock-preload-1ae7a5f130fc79b4fdb8a4272d9426b5');
+    if ( style !== null ) {
+        return;
+    }
+    // Put it back
+    style = document.createElement('style');
+    style.setAttribute('id', 'ublock-preload-1ae7a5f130fc79b4fdb8a4272d9426b5');
+    style.appendChild(document.createTextNode(text + '\n{display:none !important;}'));
+    var parent = document.head || document.documentElement;
+    if ( parent ) {
+        parent.appendChild(style);
+    }
+})();
+
+/******************************************************************************/
+
+// Cosmetic filters
 
 (function() {
     if ( vAPI.skipCosmeticFiltering ) {
@@ -78,15 +106,6 @@ var messager = vAPI.messaging.channel('contentscript-end.js');
     var contextNodes = [document];
     var nullArray = { push: function(){} };
 
-    var domLoaded = function() {
-        idsFromNodeList(document.querySelectorAll('[id]'));
-        classesFromNodeList(document.querySelectorAll('[class]'));
-        retrieveGenericSelectors();
-
-        // Flush dead code from memory (does this work?)
-        domLoaded = null;
-    };
-
     var retrieveGenericSelectors = function() {
         var selectors = classSelectors !== null ? Object.keys(classSelectors) : [];
         if ( idSelectors !== null ) {
@@ -430,7 +449,9 @@ var messager = vAPI.messaging.channel('contentscript-end.js');
 
     // Start cosmetic filtering.
 
-    domLoaded();
+    idsFromNodeList(document.querySelectorAll('[id]'));
+    classesFromNodeList(document.querySelectorAll('[class]'));
+    retrieveGenericSelectors();
 
     // Below this point is the code which takes care to observe changes in
     // the page and to add if needed relevant CSS rules as a result of the
diff --git a/src/js/contentscript-start.js b/src/js/contentscript-start.js
index 996b749f4..42357c8df 100644
--- a/src/js/contentscript-start.js
+++ b/src/js/contentscript-start.js
@@ -20,7 +20,7 @@
 */
 
 /* jshint multistr: true */
-/* global vAPI */
+/* global vAPI, HTMLDocument */
 
 /******************************************************************************/
 
@@ -71,31 +71,32 @@ var cosmeticFilters = function(details) {
     style.setAttribute('id', 'ublock-preload-1ae7a5f130fc79b4fdb8a4272d9426b5');
     var donthide = details.cosmeticDonthide;
     var hide = details.cosmeticHide;
+    var i;
     if ( donthide.length !== 0 ) {
         donthide = donthide.length !== 1 ? donthide.join(',\n') : donthide[0];
         donthide = donthide.split(',\n');
-        var i = donthide.length;
+        i = donthide.length;
         while ( i-- ) {
             donthideCosmeticFilters[donthide[i]] = true;
         }
-        // https://github.com/gorhill/uBlock/issues/143
-        if ( hide.length !== 0 ) {
-            hide = hide.length !== 1 ? hide.join(',\n') : hide[0];
-            hide = hide.split(',\n');
-            i = hide.length;
-            var selector;
-            while ( i-- ) {
-                selector = hide[i];
-                if ( donthideCosmeticFilters[selector] ) {
-                    hide.splice(i, 1);
-                } else {
-                    hideCosmeticFilters[selector] = true;
-                }
+    }
+    // https://github.com/gorhill/uBlock/issues/143
+    if ( hide.length !== 0 ) {
+        hide = hide.length !== 1 ? hide.join(',\n') : hide[0];
+        hide = hide.split(',\n');
+        i = hide.length;
+        var selector;
+        while ( i-- ) {
+            selector = hide[i];
+            if ( donthideCosmeticFilters[selector] ) {
+                hide.splice(i, 1);
+            } else {
+                hideCosmeticFilters[selector] = true;
             }
         }
     }
     if ( hide.length !== 0 ) {
-        var text = hide.join(',\n');
+        var text = vAPI.specificHideStyleText = hide.join(',\n');
         hideElements(text);
         // The linefeed before the style block is very important: do not remove!
         style.appendChild(document.createTextNode(text + '\n{display:none !important;}'));