diff --git a/scripts/system/audio.js b/scripts/system/audio.js
index cb9589ae9e..0a3471fa81 100644
--- a/scripts/system/audio.js
+++ b/scripts/system/audio.js
@@ -15,6 +15,7 @@
 
 var TABLET_BUTTON_NAME = "AUDIO";
 var HOME_BUTTON_TEXTURE = "http://hifi-content.s3.amazonaws.com/alan/dev/tablet-with-home-button.fbx/tablet-with-home-button.fbm/button-root.png";
+var AUDIO_QML_SOURCE = "../audio/Audio.qml";
 
 var MUTE_ICONS = {
     icon: "icons/tablet-icons/mic-mute-i.svg",
@@ -34,7 +35,6 @@ function onMuteToggled() {
     }
 }
 
-var shouldActivateButton = false;
 var onAudioScreen = false;
 
 function onClicked() {
@@ -44,18 +44,14 @@ function onClicked() {
     } else {
         var entity = HMD.tabletID;
         Entities.editEntity(entity, { textures: JSON.stringify({ "tex.close": HOME_BUTTON_TEXTURE }) });
-        shouldActivateButton = true;
-        shouldActivateButton = true;
-        tablet.loadQMLSource("../audio/Audio.qml");
-        onAudioScreen = true;
+        tablet.loadQMLSource(AUDIO_QML_SOURCE);
     }
 }
 
 function onScreenChanged(type, url) {
+    onAudioScreen = (type === "QML" && url === AUDIO_QML_SOURCE);
     // for toolbar mode: change button to active when window is first openend, false otherwise.
-    button.editProperties({isActive: shouldActivateButton});
-    shouldActivateButton = false;
-    onAudioScreen = false;
+    button.editProperties({isActive: onAudioScreen});
 }
 
 var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
diff --git a/scripts/system/help.js b/scripts/system/help.js
index a335b2ef9c..1265a5597b 100644
--- a/scripts/system/help.js
+++ b/scripts/system/help.js
@@ -40,7 +40,8 @@
     }
 
     function onScreenChanged(type, url) {
-        onHelpScreen = false;
+        onHelpScreen = type === "Web" && url.startsWith("../../../html/tabletHelp.html");
+        button.editProperties({ isActive: onHelpScreen });
     }
 
     button.clicked.connect(onClicked);
diff --git a/scripts/system/marketplaces/marketplaces.js b/scripts/system/marketplaces/marketplaces.js
index 4d26bcadb6..3be8143830 100644
--- a/scripts/system/marketplaces/marketplaces.js
+++ b/scripts/system/marketplaces/marketplaces.js
@@ -52,17 +52,11 @@ function onMessageBoxClosed(id, button) {
 
 Window.messageBoxClosed.connect(onMessageBoxClosed);
 
-var shouldActivateButton = false;
 var onMarketplaceScreen = false;
 
 function showMarketplace() {
     UserActivityLogger.openedMarketplace();
-
-    shouldActivateButton = true;
-
     tablet.gotoWebScreen(MARKETPLACE_URL_INITIAL, MARKETPLACES_INJECT_SCRIPT_URL);
-    onMarketplaceScreen = true;
-
     tablet.webEventReceived.connect(function (message) {
 
         if (message === GOTO_DIRECTORY) {
@@ -122,7 +116,6 @@ function onClick() {
     if (onMarketplaceScreen) {
         // for toolbar-mode: go back to home screen, this will close the window.
         tablet.gotoHomeScreen();
-        onMarketplaceScreen = false;
     } else {
         var entity = HMD.tabletID;
         Entities.editEntity(entity, {textures: JSON.stringify({"tex.close": HOME_BUTTON_TEXTURE})});
@@ -131,10 +124,9 @@ function onClick() {
 }
 
 function onScreenChanged(type, url) {
+    onMarketplaceScreen = type === "Web" && url === MARKETPLACE_URL_INITIAL 
     // for toolbar mode: change button to active when window is first openend, false otherwise.
-    marketplaceButton.editProperties({isActive: shouldActivateButton});
-    shouldActivateButton = false;
-    onMarketplaceScreen = false;
+    marketplaceButton.editProperties({isActive: onMarketplaceScreen});
 }
 
 marketplaceButton.clicked.connect(onClick);
diff --git a/scripts/system/menu.js b/scripts/system/menu.js
index 4ad5958144..c7a44d3e48 100644
--- a/scripts/system/menu.js
+++ b/scripts/system/menu.js
@@ -21,7 +21,6 @@ var HOME_BUTTON_TEXTURE = "http://hifi-content.s3.amazonaws.com/alan/dev/tablet-
         sortOrder: 3
     });
 
-    var shouldActivateButton = false;
     var onMenuScreen = false;
 
     function onClicked() {
@@ -31,17 +30,13 @@ var HOME_BUTTON_TEXTURE = "http://hifi-content.s3.amazonaws.com/alan/dev/tablet-
         } else {
             var entity = HMD.tabletID;
             Entities.editEntity(entity, {textures: JSON.stringify({"tex.close": HOME_BUTTON_TEXTURE})});
-            shouldActivateButton = true;
             tablet.gotoMenuScreen();
-            onMenuScreen = true;
         }
     }
 
     function onScreenChanged(type, url) {
-        // for toolbar mode: change button to active when window is first openend, false otherwise.
-        button.editProperties({isActive: shouldActivateButton});
-        shouldActivateButton = false;
-        onMenuScreen = false;
+        onMenuScreen = type === "Menu";
+        button.editProperties({isActive: onMenuScreen});
     }
 
     button.clicked.connect(onClicked);
diff --git a/scripts/system/pal.js b/scripts/system/pal.js
index 6c1652c700..2c81622668 100644
--- a/scripts/system/pal.js
+++ b/scripts/system/pal.js
@@ -40,7 +40,7 @@ var HOVER_TEXTURES = {
 var UNSELECTED_COLOR = { red: 0x1F, green: 0xC6, blue: 0xA6};
 var SELECTED_COLOR = {red: 0xF3, green: 0x91, blue: 0x29};
 var HOVER_COLOR = {red: 0xD0, green: 0xD0, blue: 0xD0}; // almost white for now
-
+var PAL_QML_SOURCE = "../Pal.qml";
 var conserveResources = true;
 
 Script.include("/~/system/libraries/controllers.js");
@@ -727,17 +727,14 @@ function tabletVisibilityChanged() {
 }
 
 var onPalScreen = false;
-var shouldActivateButton = false;
 
 function onTabletButtonClicked() {
     if (onPalScreen) {
         // for toolbar-mode: go back to home screen, this will close the window.
         tablet.gotoHomeScreen();
     } else {
-        shouldActivateButton = true;
-        tablet.loadQMLSource("../Pal.qml");
+        tablet.loadQMLSource(PAL_QML_SOURCE);
         tablet.tabletShownChanged.connect(tabletVisibilityChanged);
-        onPalScreen = true;
         Users.requestsDomainListData = true;
         populateNearbyUserList();
         isWired = true;
@@ -765,14 +762,13 @@ function wireEventBridge(on) {
 }
 
 function onTabletScreenChanged(type, url) {
-    wireEventBridge(shouldActivateButton);
+    onPalScreen = (type === "QML" && url === PAL_QML_SOURCE);
+    wireEventBridge(onPalScreen);
     // for toolbar mode: change button to active when window is first openend, false otherwise.
-    button.editProperties({isActive: shouldActivateButton});
-    shouldActivateButton = false;
-    onPalScreen = false;
+    button.editProperties({isActive: onPalScreen});
 
     // disable sphere overlays when not on pal screen.
-    if (type !== "QML" || url !== "../Pal.qml") {
+    if (!onPalScreen) {
         off();
     }
 }
diff --git a/scripts/system/snapshot.js b/scripts/system/snapshot.js
index 6321c17ded..c60e3a67f7 100644
--- a/scripts/system/snapshot.js
+++ b/scripts/system/snapshot.js
@@ -377,18 +377,15 @@ function fillImageDataFromPrevious() {
 
 var SNAPSHOT_REVIEW_URL = Script.resolvePath("html/SnapshotReview.html");
 var isInSnapshotReview = false;
-var shouldActivateButton = false;
 function onButtonClicked() {
     if (isInSnapshotReview){
         // for toolbar-mode: go back to home screen, this will close the window.
         tablet.gotoHomeScreen();
     } else {
-        shouldActivateButton = true;
         fillImageDataFromPrevious();
         tablet.gotoWebScreen(SNAPSHOT_REVIEW_URL);
         tablet.webEventReceived.connect(onMessage);
         HMD.openTablet();
-        isInSnapshotReview = true;
     }
 }
 
@@ -662,11 +659,10 @@ function maybeDeleteSnapshotStories() {
     storyIDsToMaybeDelete = [];
 }
 function onTabletScreenChanged(type, url) {
-    button.editProperties({ isActive: shouldActivateButton });
-    shouldActivateButton = false;
-    if (isInSnapshotReview) {
+    isInSnapshotReview = (type === "Web" && url === SNAPSHOT_REVIEW_URL);
+    button.editProperties({ isActive: isInSnapshotReview });
+    if (!isInSnapshotReview) {
         tablet.webEventReceived.disconnect(onMessage);
-        isInSnapshotReview = false;
     }
 }
 function onUsernameChanged() {