When I am surfing the web, my computer screen frequently freezes and the screen stays"firefox not responding" at the top of screen. What is causing this?

The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions. Try to decrease the value of the pref <b>network.http.max-connections</b> from 255 to a setting like 30 as used in Firefox 3 versions. *https://support.mozilla.com/kb/Firefox+never+finishes+loading+certain+websites ---- See also: * http://blog.bonardo.net/2011/09/30/is-your-firefor-freezing-at-regular-intervals * Places Maintenance: https://addons.mozilla.org/firefox/addon/places-maintenance/

this did not stop the problem I was having