An adware displays advertising content, often in a manner or context that may be unexpected and unwanted. Adware programs often create unwanted effects on a system like displaying pop-up advertisements and in some instances, there will be a decrease in network speed and overall system performance.

Some adware can also collect the system's browsing information (e.g. sites visited) and send the information to a remote server on the Internet. The gathered information is used by a remote Web site or user for marketing purposes. Unwanted extensions in your Internet browsers often causes the emergence of adware on your Mac.

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Remove adware on Mac manually
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