firefox is vulnerable to arbitrary code execution. Memory corruption bugs can potentially allow an attacker to execute arbitrary code on the host OS.
bugzilla.mozilla.org/buglist.cgi?bug_id=1700895%2C1703334%2C1706910%2C1711576%2C1714391
secdb.alpinelinux.org/edge/community.yaml
secdb.alpinelinux.org/v3.13/community.yaml
secdb.alpinelinux.org/v3.14/community.yaml
security.gentoo.org/glsa/202202-03
security.gentoo.org/glsa/202208-14
www.mozilla.org/en-US/security/advisories/mfsa2021-29/#CVE-2021-29976
www.mozilla.org/security/advisories/mfsa2021-28/
www.mozilla.org/security/advisories/mfsa2021-29/
www.mozilla.org/security/advisories/mfsa2021-30/