Thanks for the report. From the advisory, this particular issue only affected Firefox on Windows, so this should be a non-issue on Ubuntu:
"Note: This issue only affected Windows operating systems. Other operating systems are unaffected." ** Information type changed from Private Security to Public Security ** Summary changed: - Mozilla Firefox / Firefox ESR Buffer Overflow Vulnerability + Mozilla Firefox / Firefox ESR Buffer Overflow Vulnerability [MFSA2021-06] ** Changed in: firefox (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915129 Title: Mozilla Firefox / Firefox ESR Buffer Overflow Vulnerability [MFSA2021-06] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1915129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs