uBlock Origin 1.2.5 has been released with a new feature that blocks first-party tracking scripts that use DNS CNAME records to load tracking scripts from a third-party domain and bypass filters. The DNS API that allows DNS lookups is only available for Firefox users. Chrome users are out of luck and cannot take advantage of this feature. The new update can be downloaded from the Mozilla Add-Ons site or if you have it installed already, you can check for the new update by going into Firefox’s extensions page and clicking on ‘Check for Updates’
Source: https://www.bleepingcomputer.com/news/security/ublock-origin-125-now-blocks-cloaked-first-party-scripts-firefox-only/