I have been getting this ad popup for the last few months(green banner on the left). It happens on some web sites but not all.

Is this a malware infection on my Mac or the web host being compromised issue? How do I remove it if it is my Mac being infected?

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  • Check your safari extensions. Could be adware addons. – TheBro21 May 18 '15 at 6:35
  • 1
    & run Adware Medic – Tetsujin May 18 '15 at 6:53
  • It's not Safari extension. I only have a few legitimate extensions activated. – Standstill May 18 '15 at 11:37

Another possibility is that your ISP is doing ad-injections.

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