The popup dfm.donemac.net is caused by the presence of adware program on your computer. In order to get rid of it you will first need to establish the source causing dfm.donemac.net to appear on your computer. Manual removal of this adware isn’t an easy undertaking, since there are very many files and registry entries related to it. This guide explains automatic removal of dfm.donemac.net popups and all other adware which now reside on your computer.
The popup dfm.donemac.net is in particular related to the adwares like LyricsSay, a2zLyrics, BetterSurf, etc. This nasty and really annoying program came to your PC as a consequence of you installing some other application which was bundled with a lot of really unwanted extras, including this dfm.donemac.net popup and the main adware. Some free programs users download online often offer installation of nasty browser hijackers, add-ons, extensions, etc.
Please be very careful whenever you install free applications downloaded from online resources. Always make sure you uncheck the default installation of these additional programs like adwares, which are really not wanted by you. If your PC is yet stuck with a lot of ads and popups from dfm.donemac.net then please scan your system for automatic adware detection and removal with GridinSoft Trojan Killer.