affecting your Facebook account

ok i am getting this annoying message from facebook. I dont want to install mcafee becasue I have panda antivirus. can anyone help me with this and if anyone having this issues too. Thank you This message only happens with this computer it works fine with my other computer this is a fairly new computer. here is the message froim facebook

Secure Your Account
It looks like you downloaded software that is affecting your Facebook account and showing you unauthorized ads. It's common for people to be tricked into running programs that offer features that aren't available on Facebook, such as adding custom themes or seeing who has viewed your profile.

What is Adware?

This software will show you spammy ads that aren't approved by Facebook. They can also introduce security vulnerabilities, slow down your computer, and clutter up your news feed with ads so that you end up missing content from your friends.

If you would rather continue using this software, you may stop this process by clicking on "Log Out" in the upper right hand corner. Note that you won't be able to use Facebook from the computer where this software is installed.

My first suspicion is that your account got hacked - I WOULD NOT click on anything that it supplies. I would tend to believe that the message is NOT from FB at first, & change FB password, & see if the monkey business stops.

Also go into your "account" & "privacy" settings & look for & delete all of the "likes" & applications that you don't want. 3rd party FB developers have a sneaky way of getting in if you click "like" or "share" on some things, (clickjacking & likejacking)& such.

let m e try that and see if that helps will post once i get something thanks

ok i tried changing passwords and other things but it still does not work. However it does let me access my account on internet explorer on this computer. I also tried a different computer and it worked with fire fox??