UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.95 Safari/537.36

Steps to reproduce the problem:
I dont know. It just suddenly happen 

What is the expected behavior?
It should not open any tab for ads.

What went wrong?
I got this process detail when it was happened.

2179   ??  S      0:00.90 /Applications/Google Chrome.app/Contents/Versions/55.0.2883.95/Google Chrome Helper.app/Contents/MacOS/Google Chrome Helper --type=renderer --enable-features=*AutofillCreditCardSigninPromo<AutofillCreditCardSigninPromo,AutofillProfileCleanup<AutofillProfileCleanup,BlockSmallPluginContent<PluginPowerSaverTiny,DefaultEnableGpuRasterization<DefaultEnableGpuRasterization,*OverrideYouTubeFlashEmbed<Override YouTube Flash emed,*PointerEvent<PointerEvent,*PreconnectMore

Did this work before? N/A 

Chrome version: 55.0.2883.95  Channel: stable
OS Version: OS X 10.12.1
Flash Version: Shockwave Flash 24.0 r0