FTA:<p>> And because most anti-tracking works on the principle of filter lists, the CNAME cloaking scheme effectively renders most browsers’ anti-tracking defenses ineffective, he notes.<p>> “As of today, from the major web browser vendors only Firefox offers defenses. Since uBlock version 1.25 under Firefox, the extension dynamically resolves hosts and sanitizes such requests if a match is found. Such a measure does not work under Chrome because this web browser does not offer a way for extensions to dynamically resolve hostnames.”<p>I assume he meant uBlock Origin (rather than uBlock) as it introduced uncloaking of CNAME requests as of version 1.25.0 for Firefox: <a href="https://github.com/gorhill/uBlock/releases/tag/1.25.0" rel="nofollow">https://github.com/gorhill/uBlock/releases/tag/1.25.0</a> .