I Think Your System Has A problem Maybe You Have a Old System And You installed Many Program on it , it should Be Freezes but you can delete Some Your Heavy Program, but if You have normal System With Good Model Of CPU ,Ram ,.... , the problem is your operation system maybe Has a Some Virus Or Your Windows File has Some Problem Or Download The least Version Of Firefox 23.0.1 , Maybe You Have Old Version of Firefox And Old Version Have Some Bugs .

You have an impressive amount of extensions installed that might be contributing to this slowness.

I won't be easy to track down which extension(s) are causing this.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
• If you have many extensions then first enable half of the extensions to test which half has the problem.
• Continue to divide the bad half that still has the issue until you find which one is causing it.

Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox