Mozilla · Firefox · CVE-2020-12412
**Name of the Vulnerable Software and Affected Versions**
Firefox versions prior to 70
**Description**
The issue allows an attacker to manipulate the address bar, displaying an incorrect domain with the https:// scheme, a blocked port number, and without a lock icon, while controlling the page contents. This is achieved by navigating a tab using the history API.
**Recommendations**
For versions prior to 70, update to version 70 or later to resolve the issue.