How to remove keyboard shortcut for app? Specifically, I am used to typing Command-1 in a WordPress admin area to specify some text as a Header 1, (and Command-2 to specify Header 2), but when I do this now in Chrome, that command seems to change the current browser tab.

Is there a way to edit or remove the chrome keyboard commands so those commands will work with WordPress, (I am assuming that the Chrome commands over-ride the WordPress admin ones)?  

Using an iMac running OS X Yosemite.
I've used https://pqrs.org/osx/karabiner/ before, but I'm not sure if it will allow you to use it the way you've described. Perhaps reading their docs for re-mapping keys.