Bug 580193 - Sending application in background using Back button causes focused tab to close [r=mfinkle]

mobile/chrome/content/browser-ui.js

@@ -686,18 +686,13 @@ var BrowserUI = {
     let tab = Browser.selectedTab;
     let browser = tab.browser;
 
-    if (browser.canGoBack) {
+    if (browser.canGoBack)
       browser.goBack();
-    } else if (tab.owner) {
+    else if (tab.owner)
       this.closeTab(tab);
-    }
 #ifdef ANDROID
-    else if (Browser.tabs.length == 1) {
-      this.doCommand("cmd_quit");
-    } else {
-      this.closeTab(tab);
+    else
       window.QueryInterface(Ci.nsIDOMChromeWindow).minimize();
-    }
 #endif
   },