Norton Symantec Message

No. That is a phishing scam. Ignore and/or cancel it. Do not click on any links or call any telephone numbers.

Remove Browser Pop-up Problems

AdwareMedic

Adblock Plus 1.8.9

remove adware that displays pop-up ads and graphics on your Mac

Scam.

Do not. Call.

And do not install Norton to help, it will only mess up system.

Keep Mac OS current and up to date.

Remove unwanted adware that displays pop-up ads and graphics on your Mac - Apple Support

TheSafeMac and Adware Medic are reliable and helpful if you do run into or a drive-by malware should happen.

http://www.thesafemac.com/mmg-antivirus/

http://forums.macrumors.com/showpost.php?p=9400648&postcount=4

That message should be read as," If you have any so-called "Anti-Virus" add-ons installed, you should remove them now. "

And you should ALWAYS read pop-ups reporting so-called problems as a SCAM. No one can tell much of anything about your Mac from outside it, except maybe what Browser you claim to be using. SCAM.

Have you started to receive the telephone calls from a caller with a thick Indian accent about the law-breaking you have committed on your tax returns yet? How about the problems with your Windows computer detected by the "Microsoft support center"?. SCAM and SCAM

Norton Antivirus (made by Symantec) has a very long and illustrious reputation for mangling Mac OS X systems, sometimes to the point where a complete reinstall is necessary. Among other things, it installs kernel extensions which are known to cause kernel panics and system freezes; it contains known and documented bugs which can silently corrupt Adobe Photoshop and Adobe InDesign files, destroy a user's ability to authenticate as an administrator, and (on PPC systems) can cause Classic to stop functioning; and Symantec has on at least two occasions now released flawed .dat file updates which erroneously report certain critical Mac OS X files as "viruses." (Deleting these "viruses" causes damage to the system that in some cases renders it unbootable.)

Hi there,

This sounds like a scam. Are you using any Norton products on your computer ?

Thanks!

Abilash

Norton Support.

It now appears that when Symantec scan your mail that is sufficient to compromise your computer. For more details read http://www.engadget.com/2016/05/17/symantec-antivirus-cross-platform-security-fl aw/