diff --git a/platform/firefox/frameModule.js b/platform/firefox/frameModule.js
index 170ffd7..c296ea0 100644
--- a/platform/firefox/frameModule.js
+++ b/platform/firefox/frameModule.js
@@ -19,11 +19,13 @@
     Home: https://github.com/gorhill/uMatrix
 */
 
+/* global Components */
+
 'use strict';
 
 /******************************************************************************/
 
-this.EXPORTED_SYMBOLS = ['contentObserver'];
+this.EXPORTED_SYMBOLS = ['contentObserver', 'LocationChangeListener'];
 
 const {interfaces: Ci, utils: Cu} = Components;
 const {Services} = Cu.import('resource://gre/modules/Services.jsm', null);
@@ -236,6 +238,41 @@ const contentObserver = {
 
 /******************************************************************************/
 
+const locationChangedMessageName = hostName + ':locationChanged';
+
+const LocationChangeListener = function(docShell) {
+    if ( !docShell ) {
+        return;
+    }
+
+    var requestor = docShell.QueryInterface(Ci.nsIInterfaceRequestor);
+    var ds = requestor.getInterface(Ci.nsIWebProgress);
+    var mm = requestor.getInterface(Ci.nsIContentFrameMessageManager);
+
+    if ( ds && mm && typeof mm.sendAsyncMessage === 'function' ) {
+        this.docShell = ds;
+        this.messageManager = mm;
+        ds.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_LOCATION);
+    }
+};
+
+LocationChangeListener.prototype.QueryInterface = XPCOMUtils.generateQI([
+    'nsIWebProgressListener',
+    'nsISupportsWeakReference'
+]);
+
+LocationChangeListener.prototype.onLocationChange = function(webProgress, request, location, flags) {
+    if ( !webProgress.isTopLevel ) {
+        return;
+    }
+    this.messageManager.sendAsyncMessage(locationChangedMessageName, {
+        url: location.asciiSpec,
+        flags: flags,
+    });
+};
+
+/******************************************************************************/
+
 contentObserver.register();
 
 /******************************************************************************/
diff --git a/platform/firefox/frameScript.js b/platform/firefox/frameScript.js
index 949d945..d2f9f70 100644
--- a/platform/firefox/frameScript.js
+++ b/platform/firefox/frameScript.js
@@ -21,13 +21,15 @@
 
 /******************************************************************************/
 
+var locationChangeListener; // Keep alive while frameScript is alive
+
 (function() {
 
 'use strict';
 
 /******************************************************************************/
 
-let {contentObserver} = Components.utils.import(
+let {contentObserver, LocationChangeListener} = Components.utils.import(
     Components.stack.filename.replace('Script', 'Module'),
     null
 );
@@ -54,6 +56,15 @@ let onLoadCompleted = function() {
 
 addMessageListener('umatrix-load-completed', onLoadCompleted);
 
+if ( docShell ) {
+    let Ci = Components.interfaces;
+    let wp = docShell.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebProgress);
+    let dw = wp.DOMWindow;
+    if ( dw === dw.top ) {
+        locationChangeListener = new LocationChangeListener(docShell);
+    }
+}
+
 /******************************************************************************/
 
 })();
diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index 1df334e..187964d 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -890,6 +890,45 @@ var tabWatcher = (function() {
         vAPI.setIcon(tabIdFromTarget(target), getOwnerWindow(target));
     };
 
+    var locationChangedMessageName = location.host + ':locationChanged';
+
+    var onLocationChanged = function(e) {
+        var vapi = vAPI;
+        var details = e.data;
+
+        // Ignore notifications related to our popup
+        if ( details.url.lastIndexOf(vapi.getURL('popup.html'), 0) === 0 ) {
+            return;
+        }
+
+        var browser = e.target;
+        var tabId = tabIdFromTarget(browser);
+
+        if ( tabId === vapi.noTabId ) {
+            return;
+        }
+
+        //console.debug("nsIWebProgressListener: onLocationChange: " + details.url + " (" + details.flags + ")");        
+
+        // LOCATION_CHANGE_SAME_DOCUMENT = "did not load a new document"
+        if ( details.flags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT ) {
+            vapi.tabs.onUpdated(tabId, {url: details.url}, {
+                frameId: 0,
+                tabId: tabId,
+                url: browser.currentURI.asciiSpec
+            });
+            return;
+        }
+
+        // https://github.com/chrisaljoudi/uBlock/issues/105
+        // Allow any kind of pages
+        vapi.tabs.onNavigation({
+            frameId: 0,
+            tabId: tabId,
+            url: details.url,
+        });
+    };
+
     var onWindowLoad = function(ev) {
         if ( ev ) {
             this.removeEventListener(ev.type, onWindowLoad);
@@ -899,19 +938,16 @@ var tabWatcher = (function() {
         if ( wintype !== 'navigator:browser' ) {
             return;
         }
-
         var tabBrowser = getTabBrowser(this);
         if ( !tabBrowser ) {
             return;
         }
-
-        var tabContainer;
-        if ( tabBrowser.tabContainer ) {
-            tabContainer = tabBrowser.tabContainer;
-            vAPI.contextMenu.register(this.document);
-        } else {
+        var tabContainer = tabBrowser.tabContainer;
+        if ( !tabContainer ) {
             return;
         }
+
+        vAPI.contextMenu.register(this.document);
         tabContainer.addEventListener('TabOpen', onOpen);
         tabContainer.addEventListener('TabShow', onShow);
         tabContainer.addEventListener('TabClose', onClose);
@@ -991,10 +1027,20 @@ var tabWatcher = (function() {
             }
         }
 
+        vAPI.messaging.globalMessageManager.addMessageListener(
+            locationChangedMessageName,
+            onLocationChanged
+        );
+
         Services.ww.registerNotification(windowWatcher);
     };
 
     var stop = function() {
+        vAPI.messaging.globalMessageManager.removeMessageListener(
+            locationChangedMessageName,
+            onLocationChanged
+        );
+
         Services.ww.unregisterNotification(windowWatcher);
 
         for ( var win of vAPI.tabs.getWindows() ) {