Hey! That's kinda weird. I have Adblock & I was able to whitelist the Feral-Heart website. All I did was click on the button for Adblock (on the top of my browser) & I was able to turn it off right there.
Hmmm.
My best suggestion at the moment would be to maybe play around with a bit more (unless you're sure you've already tried everything you can do!--Can you maybe look up a video tutorial or something like that? Think it could maybe help!)
I understand your frustration, though.
Ads can be very annoying. But, like Panzram stated, just try to keep in mind that they help keep the game around! :)
I also use google chrome but have never utilized any sort of adblocker. I do see the ads everywhere, including the login page, but they have never taken me anywhere simply by clicking on the page.
Go into your Google Chrome settings, scroll down to advanced. Scroll down to the Privacy and Security section, at the bottom click Content Settings. Scroll down to Pop-Ups and Redirects and go in there and make sure you enable it as blocked. It is blocked when the little tab thingy is gray, not blue. You can also go one setting down from Pop-Ups and Redirects where it says "Ads". From there you can enable it to block ads from sites that tend to show intrusive ads and then whitelist FeralHeart!
As for that last setting I have it turns on, as in it blocks ads on sites that show intrusive ads, I have not white listed FH, but Chrome does not recognize FH as being one of those intrusive sites so I still see the ads! ^^