By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
|https://bugzilla.mozilla.org/show_bug.cgi?id=1596668||Issue Tracking Permissions Required|
|https://security.gentoo.org/glsa/202003-02||Third Party Advisory|
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