Make the options dialog resizeable.

mail/base/content/mailCore.js

@@ -84,20 +84,7 @@ function toOpenWindowByType( inType, uri )
 
 function toMessengerWindow()
 {
-  var pref = Components.classes["@mozilla.org/preferences-service;1"]
+  toOpenWindowByType("mail:3pane", "chrome://messenger/content/messenger.xul");
-                       .getService(Components.interfaces.nsIPrefBranch);
-  var windowDoc = "chrome://messenger/content/messenger.xul";
-  try
-  {
-    var layoutType = pref.getIntPref("mail.pane_config");
-    windowDoc = !layoutType ? "chrome://messenger/content/messenger.xul" : 
-                              "chrome://messenger/content/mail3PaneWindowVertLayout.xul";
-   }
-   catch(ex)
-   {
-   }    
-   
-   toOpenWindowByType("mail:3pane", windowDoc);
 }
     
 function toAddressBook() 
@@ -115,3 +102,18 @@ function CheckOnline()
 {
   return true; 
 }
+
+function openOptionsDialog(containerID, paneURL, itemID)
+{
+  //check for an existing pref window and focus it; it's not application modal
+  const kWindowMediatorContractID = "@mozilla.org/appshell/window-mediator;1";
+  const kWindowMediatorIID = Components.interfaces.nsIWindowMediator;
+  const kWindowMediator = Components.classes[kWindowMediatorContractID].getService(kWindowMediatorIID);
+  var lastPrefWindow = kWindowMediator.getMostRecentWindow("mozilla:preferences");
+  
+  if (lastPrefWindow)
+    lastPrefWindow.focus();
+  else 
+    openDialog("chrome://communicator/content/pref/pref.xul","PrefWindow", 
+               "chrome,titlebar,resizable=yes", paneURL, containerID, itemID);
+}

mail/base/content/mailWindowOverlay.xul

@@ -1491,7 +1491,7 @@
         <menuitem label="&javaScriptConsoleCmd.label;" accesskey="&javaScriptConsoleCmd.accesskey;" oncommand="toJavaScriptConsole();"/>
         <menuseparator/>
         <menuitem label="&accountManagerCmd.label;" accesskey="&accountManagerCmd.accesskey;" oncommand="MsgAccountManager(null);"/>
-        <menuitem id="menu_preferences" oncommand="goPreferences('mailnews', 'chrome://messenger/content/pref-mailnews.xul','mailnews')"/>
+        <menuitem id="menu_preferences" oncommand="openOptionsDialog('mailnews', 'chrome://messenger/content/pref-mailnews.xul','mailnews')"/>
        </menupopup>
       </menu>    
       

mail/components/addrbook/content/addressbook.xul

@@ -358,7 +358,7 @@
             <menuitem label="&exportCmd.label;" accesskey="&exportCmd.accesskey;" oncommand="AbExport()"/>
             <menuseparator />  
             <menuitem id="menu_preferences" label="&preferencesCmd.label;" accesskey="&preferencesCmd.accesskey;"
-                      oncommand="goPreferences('mailnews', 'chrome://messenger/content/addressbook/pref-addressing.xul', 'mailaddressbookpref')"/>
+                      oncommand="openOptionsDialog('mailnews', 'chrome://messenger/content/addressbook/pref-addressing.xul', 'mailaddressbookpref')"/>
           </menupopup>
         </menu>
 

mail/components/compose/content/messengercompose.xul

@@ -422,7 +422,7 @@
             <menuseparator/>
             <menuitem label="&accountManagerCmd.label;" accesskey="&accountManagerCmd.accesskey;" command="cmd_account"/>
             <menuitem id="menu_preferences" label="&preferencesCmd.label;" accesskey="&preferencesCmd.accesskey;"
-                      oncommand="goPreferences('mailnews', 'chrome://messenger/content/messengercompose/pref-composing_messages.xul', 'mailcomposepref');"/>
+                      oncommand="openOptionsDialog('mailcomposepref', 'chrome://messenger/content/messengercompose/pref-composing_messages.xul', 'mailcomposepref');"/>
          </menupopup>
       </menu>