diff --git a/suite/common/sidebar/customize.xul b/suite/common/sidebar/customize.xul
index 3f9297905510..1e197522b64e 100644
--- a/suite/common/sidebar/customize.xul
+++ b/suite/common/sidebar/customize.xul
@@ -74,8 +74,6 @@
                 predicate="http://home.netscape.com/NC-rdf#open" />
               <binding subject="?panel" object="?exclude"
                 predicate="http://home.netscape.com/NC-rdf#exclude" />
-              <binding subject="?panel" object="?tooltip"
-                predicate="http://home.netscape.com/NC-rdf#tooltip" />
             </bindings>
             <action>
               <treechildren>
diff --git a/suite/common/sidebar/local-panels.rdf b/suite/common/sidebar/local-panels.rdf
index 5297744bd623..ad86c1ef0c2e 100644
--- a/suite/common/sidebar/local-panels.rdf
+++ b/suite/common/sidebar/local-panels.rdf
@@ -37,16 +37,13 @@
   <rdf:Description about="urn:sidebar:panel:whats-related">
     <nc:title>&sidebar.whats-related.label;</nc:title>
     <nc:content>chrome://communicator/content/related/related-panel.xul</nc:content>
-    <nc:tooltip>&sidebar.whats-related.tooltip;</nc:title>
   </rdf:Description>
   <rdf:Description about="urn:sidebar:panel:search">
     <nc:title>&sidebar.search.label;</nc:title>
     <nc:content>chrome://communicator/content/search/search-panel.xul</nc:content>
-    <nc:tooltip>&sidebar.search.tooltip;</nc:tooltip>
   </rdf:Description>
   <rdf:Description about="urn:sidebar:panel:bookmarks">
     <nc:title>&sidebar.bookmarks.label;</nc:title>
     <nc:content>chrome://communicator/content/bookmarks/bm-panel.xul</nc:content>
-    <nc:tooltip>&sidebar.bookmarks.tooltip;</nc:tooltip>
   </rdf:Description>
 </rdf:RDF>
diff --git a/suite/locales/en-US/chrome/common/sidebar/local-panels.dtd b/suite/locales/en-US/chrome/common/sidebar/local-panels.dtd
index 7f54dcc5333c..80cb33908aa4 100644
--- a/suite/locales/en-US/chrome/common/sidebar/local-panels.dtd
+++ b/suite/locales/en-US/chrome/common/sidebar/local-panels.dtd
@@ -21,13 +21,8 @@
 
 <!-- extracted from ./local-panels.rdf -->
 
-<!ENTITY sidebar.whats-related.label   "What's Related">
-<!ENTITY sidebar.whats-related.tooltip "Click for a list of related Web sites">
-<!ENTITY sidebar.search.label          "Search">
-<!ENTITY sidebar.search.tooltip        "Click to do a Web search">
+<!ENTITY sidebar.whats-related.label  "What's Related">
+<!ENTITY sidebar.search.label         "Search">
 <!-- LOCALIZATION NOTE sidebar.tinderbox.label: DONT_TRANSLATE -->
-<!ENTITY sidebar.tinderbox.label       "Tinderbox">
-<!ENTITY sidebar.tinderbox.tooltip     "Click to view mozilla.org tree status">
-<!ENTITY sidebar.bookmarks.label       "Bookmarks">
-<!ENTITY sidebar.bookmarks.tooltip     "Click to view bookmarks">
-
+<!ENTITY sidebar.tinderbox.label      "Tinderbox">
+<!ENTITY sidebar.bookmarks.label      "Bookmarks">
diff --git a/suite/locales/en-US/chrome/common/sidebar/sidebarOverlay.dtd b/suite/locales/en-US/chrome/common/sidebar/sidebarOverlay.dtd
index 7be8e02f811c..3033c196af81 100644
--- a/suite/locales/en-US/chrome/common/sidebar/sidebarOverlay.dtd
+++ b/suite/locales/en-US/chrome/common/sidebar/sidebarOverlay.dtd
@@ -29,6 +29,3 @@
 <!ENTITY sidebar.no-panels.state     "My Sidebar is currently empty.">
 <!ENTITY sidebar.no-panels.add       'You may add panels by clicking on the "Add" button above, and then clicking on "Customize..."'>
 <!ENTITY sidebar.no-panels.hide      'If you would like to completely hide My Sidebar, click on the "View" menu above and select "Sidebar."'>
-
-<!ENTITY customizeSidebar.tooltip   "Click to customize My Sidebar">
-<!ENTITY sidebarGrippy.tooltip      "Click to open/close My Sidebar; drag to resize">
\ No newline at end of file