--- a/browser/modules/ProcessHangMonitor.jsm
+++ b/browser/modules/ProcessHangMonitor.jsm
@@ -15,20 +15,20 @@ Cu.import("resource://gre/modules/Servic
 
 /**
  * This JSM is responsible for observing content process hang reports
  * and asking the user what to do about them. See nsIHangReport for
  * the platform interface.
  */
 
 /**
- * If a hang hasn't been reported for more than 5 seconds, assume the
+ * If a hang hasn't been reported for more than 10 seconds, assume the
  * content process has gotten unstuck (and hide the hang notification).
  */
-const HANG_EXPIRATION_TIME = 5000;
+const HANG_EXPIRATION_TIME = 10000;
 
 let ProcessHangMonitor = {
   /**
    * Collection of hang reports that haven't expired or been dismissed
    * by the user. The keys are nsIHangReports and values keys are
    * timers. Each time the hang is reported, the timer is refreshed so
    * it expires after HANG_EXPIRATION_TIME.
    */

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -2273,17 +2273,17 @@ pref("viewmanager.do_doublebuffering", t
 // enable single finger gesture input (win7+ tablets)
 pref("gestures.enable_single_finger_input", true);
 
 pref("editor.resizing.preserve_ratio",       true);
 pref("editor.positioning.offset",            0);
 
 pref("dom.use_watchdog", true);
 pref("dom.max_chrome_script_run_time", 20);
-pref("dom.max_child_script_run_time", 2);
+pref("dom.max_child_script_run_time", 10);
 pref("dom.max_script_run_time", 10);
 
 // If true, ArchiveReader will be enabled
 pref("dom.archivereader.enabled", false);
 
 // Hang monitor timeout after which we kill the browser, in seconds
 // (0 is disabled)
 // Disabled on all platforms per bug 705748 until the found issues are
@@ -2322,17 +2322,17 @@ pref("plugin.persistentPermissionAlways.
 // before we consider it "hung".
 pref("dom.ipc.plugins.timeoutSecs", 45);
 // How long a plugin process will wait for a response from the parent
 // to a synchronous request before terminating itself. After this
 // point the child assumes the parent is hung. Currently disabled.
 pref("dom.ipc.plugins.parentTimeoutSecs", 0);
 // How long a plugin in e10s is allowed to process a synchronous IPC
 // message before we notify the chrome process of a hang.
-pref("dom.ipc.plugins.contentTimeoutSecs", 2);
+pref("dom.ipc.plugins.contentTimeoutSecs", 45);
 // How long a plugin launch is allowed to take before
 // we consider it failed.
 pref("dom.ipc.plugins.processLaunchTimeoutSecs", 45);
 #ifdef XP_WIN
 // How long a plugin is allowed to process a synchronous IPC message
 // before we display the plugin hang UI
 pref("dom.ipc.plugins.hangUITimeoutSecs", 11);
 // Minimum time that the plugin hang UI will be displayed