rem: window.opener.getBrowser().hideMessage(null, "top"); 
add: window.opener.gMissingPluginInstaller.closeNotification(); 
context: function wizardFinish(){  // don't refresh if no plugins were found or installed  if ((gPluginInstaller.mSuccessfullPluginInstallation > 0) &&      (gPluginInstaller.mPluginInfoArray.length != 0) &&      gPluginInstaller.mTab) {    // clear the tab's plugin list only if we installed at least one plugin    gPluginInstaller.mTab.missingPlugins = null;    // reset UI    window.opener.getBrowser().hideMessage(null, "top");    // reload the browser to make the new plugin show    window.opener.getBrowser().reloadTab(gPluginInstaller.mTab);  }  return true;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/c0d764e012da1afc1ba99630cc691f4aa44a9c88/pluginInstallerWizard.js/clean/toolkit/mozapps/plugins/content/pluginInstallerWizard.js