diff --git a/content/treestyletab/treestyletab.js b/content/treestyletab/treestyletab.js
index 5185b28b..d38dd87a 100644
--- a/content/treestyletab/treestyletab.js
+++ b/content/treestyletab/treestyletab.js
@@ -776,6 +776,7 @@ catch(e) {
 							(
 								TreeStyleTabService.getTreePref('urlbar.loadSameDomainToNewChildTab') &&
 								currentHost == RegExp.$1 &&
+								currentURI.spec.split('#')[0] != irl.split('#')[0] &&
 								(TreeStyleTabService.readyToOpenChildTab(
 									parentHost == RegExp.$1 ?
 										parentTab :
diff --git a/defaults/preferences/treestyletab.js b/defaults/preferences/treestyletab.js
index f5b5d4ff..ff5e0cff 100644
--- a/defaults/preferences/treestyletab.js
+++ b/defaults/preferences/treestyletab.js
@@ -14,7 +14,7 @@ pref("extensions.treestyletab.levelMargin",            12);
 pref("extensions.treestyletab.show.openSelectionLinks", true);
 
 pref("extensions.treestyletab.urlbar.loadDifferentDomainToNewTab", true);
-pref("extensions.treestyletab.urlbar.loadSameDomainToNewChildTab", true);
+pref("extensions.treestyletab.urlbar.loadSameDomainToNewChildTab", false);
 pref("extensions.treestyletab.loadDroppedLinkToNewChildTab",  false);
 pref("extensions.treestyletab.openGroupBookmarkAsTabSubTree", true);