An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1102.15.1-1102.15.1-3ubuntu2115.10.0-1115.11.0-1115.12.0-1115.12.0-1build1115.13.0-1115.14.0-1115.16.0-1115.16.0-1115.17.0-1115.18.0-1115.19.0-1115.20.0-1115.21.0-1115.10.0-1115.3.0-0ubuntu1115.4.0-2115.5.0-1115.6.0-1115.7.0-4115.8.0-1115.9.0-1115.9.0-1build138.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu452.9.1-1build152.9.1-1ubuntu352.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.168.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu178.13.0-178.15.0-278.15.0-4ubuntu1Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:LI:NA:NCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N