we're are not directly using any such thing as QuickTime plugin.
As stated in this post http://thwack.solarwinds.com/message/129923#129923 it is most likely caused by your setup to play alert sound on a web page (when Alerts resource is present) and the quicktime plugin is registered to handle playing sounds in your browser.
You can either unregister the plugin in your browser or disable alert sounds on web - go to account settings and find dropdown "Alert Sound" and set it to "No Alert Sounds".
It should not be related at all to the maps.
Let me know if this helps.