diff --git a/xpfe/components/bookmarks/resources/bookmarks.xul b/xpfe/components/bookmarks/resources/bookmarks.xul
index 0e66f29187ed..8c2c9703a439 100644
--- a/xpfe/components/bookmarks/resources/bookmarks.xul
+++ b/xpfe/components/bookmarks/resources/bookmarks.xul
@@ -255,26 +255,44 @@
     <treecol id="Name"
       sortSeparators="true" persist="hidden width" width="4*" flex="4"
       rdf:resource="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="URL"
       sortSeparators="true" persist="hidden width" width="4*" flex="4"
       rdf:resource="http://home.netscape.com/NC-rdf#URL"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="ShortcutURL"
       sortSeparators="true" persist="hidden width" width="1*" flex="1"
       rdf:resource="http://home.netscape.com/NC-rdf#ShortcutURL"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="Description"
       sortSeparators="true" persist="hidden width" width="1*" flex="1"
       rdf:resource="http://home.netscape.com/NC-rdf#Description"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="LastVisitDate"
       sortSeparators="true" persist="hidden width" width="1*" flex="1"
       rdf:resource="http://home.netscape.com/WEB-rdf#LastVisitDate"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="BookmarkAddDate"
       sortSeparators="true" persist="hidden width" width="1*" flex="1"
       rdf:resource="http://home.netscape.com/NC-rdf#BookmarkAddDate"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol id="LastModifiedDate"
       sortSeparators="true" persist="hidden width" width="1*" flex="1"
       rdf:resource="http://home.netscape.com/WEB-rdf#LastModifiedDate"
diff --git a/xpfe/components/directory/directory.xul b/xpfe/components/directory/directory.xul
index e1c459de48d5..fa596540b70d 100644
--- a/xpfe/components/directory/directory.xul
+++ b/xpfe/components/directory/directory.xul
@@ -57,7 +57,9 @@
 
       <treecolgroup>
         <treecol flex="1" id="FilenameColumn" rdf:resource="http://home.netscape.com/NC-rdf#Name" sortActive="true" sortDirection="ascending" />
+            <splitter class="tree-splitter"/>
         <treecol flex="1" id="ContentLengthColumn" rdf:resource="http://home.netscape.com/NC-rdf#Content-Length"/>
+            <splitter class="tree-splitter"/>
         <treecol flex="1" id="LastModColumn" rdf:resource="http://home.netscape.com/WEB-rdf#LastModifiedDate"/>
       </treecolgroup>
 
diff --git a/xpfe/components/history/resources/history.xul b/xpfe/components/history/resources/history.xul
index 48c4a746df65..0355b731e809 100644
--- a/xpfe/components/history/resources/history.xul
+++ b/xpfe/components/history/resources/history.xul
@@ -180,14 +180,23 @@
     <treecol flex="4" id="Name"
       sortSeparators="true" persist="hidden width" 
       rdf:resource="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol flex="4" id="URL"
       sortSeparators="true" persist="hidden width" 
       rdf:resource="http://home.netscape.com/NC-rdf#URL"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol flex="1" id="Date"
       sortSeparators="true" persist="hidden width" 
       rdf:resource="http://home.netscape.com/NC-rdf#Date"
       rdf:resource2="http://home.netscape.com/NC-rdf#Name"/>
+
+    <splitter class="tree-splitter"/>
+
     <treecol persist="width" fixed="true" width="14" id="PopupColumn"/>
   </treecolgroup>
 
diff --git a/xpfe/components/search/resources/internetresults.xul b/xpfe/components/search/resources/internetresults.xul
index 3e1c3dc399cf..2bfd8b5053d0 100644
--- a/xpfe/components/search/resources/internetresults.xul
+++ b/xpfe/components/search/resources/internetresults.xul
@@ -48,22 +48,29 @@
 
                 <treecolgroup>
 		  <treecol id="NameColumn" rdf:resource="http://home.netscape.com/NC-rdf#Name" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="PageRankColumn" rdf:resource="http://home.netscape.com/NC-rdf#PageRank"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Name" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="RelevanceColumn" rdf:resource="http://home.netscape.com/NC-rdf#Relevance"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Name"
 				style="width: 0; visibility: collapse;" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="PriceColumn" rdf:resource="http://home.netscape.com/NC-rdf#Price"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Availability"
 				style="width: 0; visibility: collapse;" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="AvailabilityColumn" rdf:resource="http://home.netscape.com/NC-rdf#Availability"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Price"
 				style="width: 0; visibility: collapse;" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="DateColumn" rdf:resource="http://home.netscape.com/NC-rdf#Date"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Name"
 				style="width: 0; visibility: collapse;" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="SiteColumn" rdf:resource="http://home.netscape.com/NC-rdf#Site"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Name" flex="1"/>
+            <splitter class="tree-splitter"/>
 		  <treecol id="EngineColumn" rdf:resource="http://home.netscape.com/NC-rdf#Engine"
 				rdf:resource2="http://home.netscape.com/NC-rdf#Name" flex="1"/>
                 </treecolgroup>