CLEANSTART-2024-UJ00515 website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL

Security vulnerability affects the firefox-esr package. A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL...

UBUNTU-CVE-2023-4053

A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox 116, Firefox ESR 115.2, and Thunderbird 115.2...

CVE-2008-3329

Unspecified vulnerability in Links before 2.1, when "only proxies" is enabled, has unknown impact and attack vectors related to providing "URLs to external programs."...