Ads in browsers

Hi, I recently installed a software which displayed various messages offering to install other softwares, I did not accepted any of this an later also uninstalled the first software, now I get all the time a new window with ads I do not remember the company but followed many instructions on deleting the ad ware but still this ads windows keep opening in Firefox , I used also Malware Bytes but still nothing, another JRT Junk Remove tool and still keep getting those nasty windows, now I am doing a COMODO CIS full scan to see if it gets the job done, ,Any help will be appreciatted

Regards

Try scanning with ADWCleaner, Hitman Pro and Super Antispyware scanners.