【中文导读】该 CVE 涉及安全缺陷（高危风险）。具体受影响产品、版本和修复方案以 NVD/厂商公告为准。 【原始描述】The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supplied content hosted on a subdomain of a site could have been used to fool a user into thinking it was content from a different subdomain of that site. This vulnerability was fixed in Firefox 144.