I'm running Firefox 27.0.1 under Windows 8 64-bit. I have a webpage which I monetized with Google AdSense. When I enter to my web using Chrome, I can see the ads, they work well. But when entering with Firefox I just can't see them. The avast plug-in was blocking them, so I disabled it but there's something else. I checked out my installed add-ons and I have:

  • Edit cookies
  • Temper data
  • View cookies
  • avast! Online Security (disabled)

I have also installed IOBit Malware Fighter, so I disabled the "Ad Block" and "Browser protection" options, but nothing happens, I can't see the ads.

Is Firefox blocking Google Adsense ads natively or something like that?

Thanks in advance.

  • 1
    Did you try starting Firefox in safe mode? – and31415 Mar 4 '14 at 18:03
  • Oh thanks! That works! But I tried disabling all the add-ons before and it didn't work... Any ideas? – cdonts Mar 4 '14 at 18:05
  • Sorry! My bad! The avast! Online security add-on was disabled but I forgot to restart Firefox, so it was still blocking my ads! Thanks @and31415 ! – cdonts Mar 4 '14 at 18:09


Disabled add-ons might not be truly disabled, even after restarting. By restarting Firefox in safe mode (Help > Restart with Add-ons Disabled) you can troubleshoot whether some add-on is to blame, and then remove it entirely if necessary.

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