--- a/mobile/android/app/mobile.js
+++ b/mobile/android/app/mobile.js
@@ -136,17 +136,17 @@ pref("browser.sessionhistory.max_total_v
 pref("browser.sessionhistory.max_entries", 50);
 pref("browser.sessionhistory.contentViewerTimeout", 360);
 pref("browser.sessionhistory.bfcacheIgnoreMemoryPressure", false);
 
 /* session store */
 pref("browser.sessionstore.resume_session_once", false);
 pref("browser.sessionstore.resume_from_crash", true);
 pref("browser.sessionstore.interval", 10000); // milliseconds
-pref("browser.sessionstore.max_tabs_undo", 5);
+pref("browser.sessionstore.max_tabs_undo", 10);
 pref("browser.sessionstore.max_resumed_crashes", 1);
 pref("browser.sessionstore.privacy_level", 0); // saving data: 0 = all, 1 = unencrypted sites, 2 = never
 pref("browser.sessionstore.debug_logging", false);
 
 /* these should help performance */
 pref("mozilla.widget.force-24bpp", true);
 pref("mozilla.widget.use-buffer-pixmap", true);
 pref("mozilla.widget.disable-native-theme", true);