How do I get rid of invasive non-Facebook ads on Facebook ?

[Big John]

I keep getting unasked for ads on FB inviting me to meet Russian girls etc.It says below each ad 'ad not from this site'.How do I stop these appearing ?

[R. Stornaway]

Use Firefox and install the adblock addon.

[Annoyingbaseball325]

If the ads have the title "Ads not by Facebook" that means they are being inserted by an adware / malware program. To get rid of it, first uninstall any browser extensions or other software that you have installed recently, and are not sure about, as its quite likely one of those is inserting the ads.

If that doesnt work, the next step is to do an antimalware scan. I recommend "MalwareBytes Anti Malware" and also "Super Anti Spyware". Sometimes its worth scanning with both, as sometimes one program will catch something and the other wont.

Once you have cleaned out the malware. A good solution for hiding the "normal" facebook ads that Facebook displays itself, is to install the FB Purity browser extension, which hides all Facebook's own ads. It also has lots of other options for cleaning up other types of facebook junk. Its been reviewed and highly rated in the Washington Post, CNET, Lifehacker and PCWorld.

You can get it here: http://fbpurity.com