CCleaner finds programs I don't have

I have previously had installed both Opera and Firefox but they have been uninstalled for a while now. Ccleaner still seems to be finding them and attempting to clean them yet there is nothing to clean. Is there anyway I can remove these programs from Ccleaner?

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Search your hard drive and Registry (Start >> Run... >> regedit) for mentions of Firefox and Opera, and delete those.

I can't help you more, those detections are hardcoded in CCleaner and thus nobody knows what CCleaner does but the devs :(

Thanks for your help. I found a folder called C:\users\(my user name)\AppData and in the Local and Roaming folders were a Mozilla (Firefox) folder and an Opera folder. I hope that helps anyone else who has this problem.