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what is this ((.....http s04 cltrda com sc.......)) and how do i block it from popping up everytime i change search pages

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started popping up when i updated my browser and pops up every time i open new tab page or just change my search

started popping up when i updated my browser and pops up every time i open new tab page or just change my search

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Do a malware check with some malware scan programs. You need to scan with all programs because each program detects different malware. Make sure that you update each program to get the latest version of the database before doing a scan.

See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and What to do when searches take you to the wrong search website