Bug 367461 Tab Preview Should Be Disabled for Current Tab

r+sr=neil


git-svn-id: svn://10.0.0.236/trunk@218726 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpfe/global/resources/content/bindings/tabbrowser.xml

@@ -222,7 +222,8 @@
           var canvas = aPopup.lastChild.firstChild;
           canvas.parentNode.hidden = true;
 
-          if (!this.mPrefs.getBoolPref("browser.tabs.tooltippreview.enable")) {
+          if (tab == this.mCurrentTab ||
+              !this.mPrefs.getBoolPref("browser.tabs.tooltippreview.enable")) {
             label.removeAttribute("width");
             aPopup.removeAttribute("tabpreview");
             return true;