* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3
(CVE-2020-15673)
* Mozilla: XSS when pasting attacker-controlled data into a contenteditable
element (CVE-2020-15676)
* Mozilla: Download origin spoofing via redirect (CVE-2020-15677)
* Mozilla: When recursing through layers while scrolling, an iterator may
have become invalid, resulting in a potential use-after-free scenario
(CVE-2020-15678)
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