Google Chrome 25% CPU usage (Norton 360)

Hello,

 

I'm using chrome browser for very long time and this problem appeared days ago. When I close chrome

my Norton 360 starts to consume my %25 CPU, there's two n360.exe process as we all know, and one of them

eating 25 CPU power. To be clear:

 

What I sure/confirmed in my position:

 

-When Google Chrome process closed entirely Norton 360 consumes %22-%25 power of my CPUs

(I saw this on Windows task manager, process tab)

-Norton 360 is already up to date

-There's no malwares on my system. already scanned million times(Malwarebytes)

-When Chrome stays up, Norton consumes nothing

-Extensions I used for Chrome: Adblock Plus, Zenmate, Norton Toolbar

-Already did clean install google chrome, nothing worked

-Mozilla Firefox works without problems

 

Zenmate is a privacy extension that I was using since last 2 years(probably)

Adblock Plus blocking annoying ads on youtube

 

I dont think anything wrong my system, because I NEVER get any issues before- all extensions was working

normal without any CPU spike. This started to happen days ago, I heard Google Chrome get a beta status for

some feature..maybe thats why?

 

And why my Norton should affected with this? Whats the "connection" between google browser and norton?

I'm a loyal Norton user since old Symantec Antivirus versions and I want to know why.  Please provide some

ideas to fix this, Zenmate extension is a life-saver thats why I using this browser, because its only works on

google chrome.

 

Please help