diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index 08b2a84..a35cde7 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -269,7 +269,14 @@ var windowWatcher = {
             return;
         }
 
-        if ( tabBrowser.tabContainer ) {
+        if ( tabBrowser.deck ) {
+            // Fennec
+            tabContainer = tabBrowser.deck;
+            tabContainer.addEventListener(
+                'DOMTitleChanged',
+                tabWatcher.onFennecLocationChange
+            );
+        } else if ( tabBrowser.tabContainer ) {
             // desktop Firefox
             tabContainer = tabBrowser.tabContainer;
             tabBrowser.addTabsProgressListener(tabWatcher);
@@ -346,6 +353,23 @@ var tabWatcher = {
             url: location.asciiSpec
         });
     },
+
+    onFennecLocationChange: function({target: doc}) {
+        // Fennec "equivalent" to onLocationChange
+        // note that DOMTitleChanged is selected as it fires very early
+        // (before DOMContentLoaded), and it does fire even if there is no title
+
+        var win = doc.defaultView;
+        if ( win !== win.top ) {
+            return;
+        }
+
+        vAPI.tabs.onNavigation({
+            frameId: 0,
+            tabId: getOwnerWindow(win).getTabForWindow(win).id,
+            url: Services.io.newURI(win.location.href, null, null).asciiSpec
+        });
+    }
 };
 
 /******************************************************************************/
@@ -417,7 +441,14 @@ vAPI.tabs.registerListeners = function() {
                 continue;
             }
 
-            if ( tabBrowser.tabContainer ) {
+            if ( tabBrowser.deck ) {
+                // Fennec
+                tabContainer = tabBrowser.deck;
+                tabContainer.removeEventListener(
+                    'DOMTitleChanged',
+                    tabWatcher.onFennecLocationChange
+                );
+            } else if ( tabBrowser.tabContainer ) {
                 tabContainer = tabBrowser.tabContainer;
                 tabBrowser.removeTabsProgressListener(tabWatcher);
             }
@@ -451,7 +482,7 @@ vAPI.tabs.getTabId = function(target) {
 
         for ( var win of this.getWindows() ) {
             var tab = win.BrowserApp.getTabForBrowser(target);
-            if ( tab && tab.id !== undefined ) {
+            if ( tab && tab.id ) {
                 return tab.id;
             }
         }
@@ -562,9 +593,6 @@ vAPI.tabs.get = function(tabId, callback) {
     var tabIndex = vAPI.fennec
         ? tabBrowser.tabs.indexOf(tab)
         : tabBrowser.browsers.indexOf(browser);
-    var tabTitle = vAPI.fennec
-        ? browser.contentTitle
-        : tab.label;
 
     callback({
         id: tabId,
@@ -572,7 +600,7 @@ vAPI.tabs.get = function(tabId, callback) {
         windowId: windows.indexOf(win),
         active: tab === tabBrowser.selectedTab,
         url: browser.currentURI.asciiSpec,
-        title: tabTitle
+        title: tab.label
     });
 };
 
@@ -1140,9 +1168,6 @@ var httpObserver = {
         if ( !(channel instanceof Ci.nsIHttpChannel) ) {
             return;
         }
-        
-        var reqDataKey = location.host + 'reqdata';
-        
 
         var URI = channel.URI;
         var channelData, result;
@@ -1160,7 +1185,7 @@ var httpObserver = {
                     frameId,
                     parentFrameId
                 ]*/
-                channelData = channel.getProperty(reqDataKey);
+                channelData = channel.getProperty(location.host + 'reqdata');
             } catch (ex) {
                 return;
             }
@@ -1242,14 +1267,6 @@ var httpObserver = {
                 return;
             }
         }
-        
-        if ( lastRequest.type === this.MAIN_FRAME && lastRequest.frameId === 0 ) {
-            vAPI.tabs.onNavigation({
-				frameId: 0,
-				tabId: lastRequest.tabId,
-				url: URI.asciiSpec
-			});
-        }
 
         if ( this.handleRequest(channel, URI, lastRequest) ) {
             return;
@@ -1258,7 +1275,7 @@ var httpObserver = {
         // If request is not handled we may use the data in on-modify-request
         if ( channel instanceof Ci.nsIWritablePropertyBag ) {
             channel.setProperty(
-                reqDataKey,
+                location.host + 'reqdata',
                 [
                     lastRequest.type,
                     lastRequest.tabId,