diff --git a/src/com/android/browser/BrowserActivity.java b/src/com/android/browser/BrowserActivity.java
index 66832ed..c20c5a3 100644
--- a/src/com/android/browser/BrowserActivity.java
+++ b/src/com/android/browser/BrowserActivity.java
@@ -20,7 +20,6 @@
 import com.google.android.googlelogin.GoogleLoginServiceConstants;
 
 import android.app.Activity;
-import android.app.ActivityManager;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.app.SearchManager;
@@ -721,6 +720,69 @@
         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Browser");
 
+        /* enables registration for changes in network status from
+           http stack */
+        mNetworkStateChangedFilter = new IntentFilter();
+        mNetworkStateChangedFilter.addAction(
+                ConnectivityManager.CONNECTIVITY_ACTION);
+        mNetworkStateIntentReceiver = new BroadcastReceiver() {
+                @Override
+                public void onReceive(Context context, Intent intent) {
+                    if (intent.getAction().equals(
+                            ConnectivityManager.CONNECTIVITY_ACTION)) {
+                        boolean down = intent.getBooleanExtra(
+                                ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
+                        onNetworkToggle(!down);
+                    }
+                }
+            };
+
+        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
+        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+        filter.addDataScheme("package");
+        mPackageInstallationReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                final String action = intent.getAction();
+                final String packageName = intent.getData()
+                        .getSchemeSpecificPart();
+                final boolean replacing = intent.getBooleanExtra(
+                        Intent.EXTRA_REPLACING, false);
+                if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
+                    // if it is replacing, refreshPlugins() when adding
+                    return;
+                }
+                PackageManager pm = BrowserActivity.this.getPackageManager();
+                PackageInfo pkgInfo = null;
+                try {
+                    pkgInfo = pm.getPackageInfo(packageName,
+                            PackageManager.GET_PERMISSIONS);
+                } catch (PackageManager.NameNotFoundException e) {
+                    return;
+                }
+                if (pkgInfo != null) {
+                    String permissions[] = pkgInfo.requestedPermissions;
+                    if (permissions == null) {
+                        return;
+                    }
+                    boolean permissionOk = false;
+                    for (String permit : permissions) {
+                        if (PluginManager.PLUGIN_PERMISSION.equals(permit)) {
+                            permissionOk = true;
+                            break;
+                        }
+                    }
+                    if (permissionOk) {
+                        PluginManager.getInstance(BrowserActivity.this)
+                                .refreshPlugins(
+                                        Intent.ACTION_PACKAGE_ADDED
+                                                .equals(action));
+                    }
+                }
+            }
+        };
+        registerReceiver(mPackageInstallationReceiver, filter);
+
         // If this was a web search request, pass it on to the default web search provider.
         if (handleWebSearchIntent(getIntent())) {
             moveTaskToBack(true);
@@ -787,74 +849,12 @@
             // are not animating from the tab picker.
             attachTabToContentView(mTabControl.getCurrentTab());
         }
+
         // Read JavaScript flags if it exists.
         String jsFlags = mSettings.getJsFlags();
         if (jsFlags.trim().length() != 0) {
             mTabControl.getCurrentWebView().setJsFlags(jsFlags);
         }
-
-        /* enables registration for changes in network status from
-           http stack */
-        mNetworkStateChangedFilter = new IntentFilter();
-        mNetworkStateChangedFilter.addAction(
-                ConnectivityManager.CONNECTIVITY_ACTION);
-        mNetworkStateIntentReceiver = new BroadcastReceiver() {
-                @Override
-                public void onReceive(Context context, Intent intent) {
-                    if (intent.getAction().equals(
-                            ConnectivityManager.CONNECTIVITY_ACTION)) {
-                        boolean down = intent.getBooleanExtra(
-                                ConnectivityManager.EXTRA_NO_CONNECTIVITY, false);
-                        onNetworkToggle(!down);
-                    }
-                }
-            };
-
-        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
-        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
-        filter.addDataScheme("package");
-        mPackageInstallationReceiver = new BroadcastReceiver() {
-            @Override
-            public void onReceive(Context context, Intent intent) {
-                final String action = intent.getAction();
-                final String packageName = intent.getData()
-                        .getSchemeSpecificPart();
-                final boolean replacing = intent.getBooleanExtra(
-                        Intent.EXTRA_REPLACING, false);
-                if (Intent.ACTION_PACKAGE_REMOVED.equals(action) && replacing) {
-                    // if it is replacing, refreshPlugins() when adding
-                    return;
-                }
-                PackageManager pm = BrowserActivity.this.getPackageManager();
-                PackageInfo pkgInfo = null;
-                try {
-                    pkgInfo = pm.getPackageInfo(packageName,
-                            PackageManager.GET_PERMISSIONS);
-                } catch (PackageManager.NameNotFoundException e) {
-                    return;
-                }
-                if (pkgInfo != null) {
-                    String permissions[] = pkgInfo.requestedPermissions;
-                    if (permissions == null) {
-                        return;
-                    }
-                    boolean permissionOk = false;
-                    for (String permit : permissions) {
-                        if (PluginManager.PLUGIN_PERMISSION.equals(permit)) {
-                            permissionOk = true;
-                            break;
-                        }
-                    }
-                    if (permissionOk) {
-                        PluginManager.getInstance(BrowserActivity.this)
-                                .refreshPlugins(
-                                        Intent.ACTION_PACKAGE_ADDED
-                                                .equals(action));
-                    }
-                }
-            }
-        };
-        registerReceiver(mPackageInstallationReceiver, filter);
     }
 
     @Override
@@ -2830,8 +2830,7 @@
     private static final int ANIMATE_FROM_OVERVIEW   = 104;
     private static final int ANIMATE_TO_OVERVIEW     = 105;
     private static final int OPEN_TAB_AND_SHOW       = 106;
-    private static final int CHECK_MEMORY            = 107;
-    private static final int RELEASE_WAKELOCK        = 108;
+    private static final int RELEASE_WAKELOCK        = 107;
 
     // Private handler for handling javascript and saving passwords
     private Handler mHandler = new Handler() {
@@ -2912,14 +2911,6 @@
                     resumeAfterCredentials();
                     break;
 
-                case CHECK_MEMORY:
-                    // reschedule to check memory condition
-                    mHandler.removeMessages(CHECK_MEMORY);
-                    mHandler.sendMessageDelayed(mHandler.obtainMessage
-                            (CHECK_MEMORY), CHECK_MEMORY_INTERVAL);
-                    checkMemory();
-                    break;
-
                 case RELEASE_WAKELOCK:
                     if (mWakeLock.isHeld()) {
                         mWakeLock.release();
@@ -3087,10 +3078,6 @@
                     view.setNetworkAvailable(false);
                 }
             }
-
-            // schedule to check memory condition
-            mHandler.sendMessageDelayed(mHandler.obtainMessage(CHECK_MEMORY),
-                    CHECK_MEMORY_INTERVAL);
         }
 
         @Override
@@ -3198,9 +3185,6 @@
                     }
                 }
             }
-
-            mHandler.removeMessages(CHECK_MEMORY);
-            checkMemory();
         }
 
         // return true if want to hijack the url to let another app to handle it
@@ -4864,21 +4848,6 @@
         }
     }
 
-    private void checkMemory() {
-        ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo();
-        ((ActivityManager) getSystemService(ACTIVITY_SERVICE))
-                .getMemoryInfo(mi);
-        // FIXME: mi.lowMemory is too aggressive, use (mi.availMem <
-        // mi.threshold) for now
-        //        if (mi.lowMemory) {
-        if (mi.availMem < mi.threshold) {
-            Log.w(LOGTAG, "Browser is freeing memory now because: available="
-                            + (mi.availMem / 1024) + "K threshold="
-                            + (mi.threshold / 1024) + "K");
-            mTabControl.freeMemory();
-        }
-    }
-
     private String smartUrlFilter(Uri inUri) {
         if (inUri != null) {
             return smartUrlFilter(inUri.toString());
@@ -5167,9 +5136,6 @@
     final static int DOWNLOAD_PAGE              = 2;
     final static int PREFERENCES_PAGE           = 3;
 
-    // the frenquency of checking whether system memory is low
-    final static int CHECK_MEMORY_INTERVAL = 30000;     // 30 seconds
-
     /**
      * A UrlData class to abstract how the content will be set to WebView.
      * This base class uses loadUrl to show the content.
diff --git a/src/com/android/browser/TabControl.java b/src/com/android/browser/TabControl.java
index c7c3e3f..c5085b3 100644
--- a/src/com/android/browser/TabControl.java
+++ b/src/com/android/browser/TabControl.java
@@ -698,8 +698,10 @@
      * WebView cache;
      */
     void freeMemory() {
+        if (getTabCount() == 0) return;
+
         // free the least frequently used background tab
-        Tab t = getLeastUsedTab();
+        Tab t = getLeastUsedTab(getCurrentTab().getParentTab());
         if (t != null) {
             Log.w(LOGTAG, "Free a tab in the browser");
             freeTab(t);
@@ -718,7 +720,7 @@
         System.gc();
     }
 
-    private Tab getLeastUsedTab() {
+    private Tab getLeastUsedTab(Tab currentParent) {
         // Don't do anything if we only have 1 tab.
         if (getTabCount() == 1) {
             return null;
@@ -734,7 +736,8 @@
         }
         do {
             t = mTabQueue.get(i++);
-        } while (i < queueSize && t != null && t.mMainView == null);
+        } while (i < queueSize
+                && ((t != null && t.mMainView == null) || t == currentParent));
 
         // Don't do anything if the last remaining tab is the current one or if
         // the last tab has been freed already.