Very often Firefox stops responding and freezes for about 15 seconds and then resumes

Whether I am on a particular website, searching or playing games I keep getting the screen freezing and at the top bar it says "Not Responding" - this will clear on its own after about 10-15 seconds but then 5-10 minutes later it happens again!

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 256 to 30 as used in Firefox 3 versions.
*https://support.mozilla.com/kb/Firefox+never+finishes+loading+certain+websites
Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

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