CVE-2018-18510
The about:crashcontent and about:crashparent pages can be triggered by web content. These pages are used to crash the loaded page or the browser for test purposes. This issue allows for a non-persistent denial of service (DOS) attack by a malicious site which links to these pages. This vulnerability affects Firefox < 64. Date published : 2019-04-26 https://bugzilla.mozilla.org/show_bug.cgi?id=1507702