When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
{ "binaries": [ { "binary_version": "96.0+build2-0ubuntu0.18.04.1", "binary_name": "firefox" }, { "binary_version": "96.0+build2-0ubuntu0.18.04.1", "binary_name": "firefox-dev" }, { "binary_version": "96.0+build2-0ubuntu0.18.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "96.0+build2-0ubuntu0.18.04.1", "binary_name": "firefox-mozsymbols" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "thunderbird" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "thunderbird-dev" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "thunderbird-gnome-support" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "thunderbird-mozsymbols" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "xul-ext-calendar-timezones" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "xul-ext-gdata-provider" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1", "binary_name": "xul-ext-lightning" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "96.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox" }, { "binary_version": "96.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-dev" }, { "binary_version": "96.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "96.0+build2-0ubuntu0.20.04.1", "binary_name": "firefox-mozsymbols" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "thunderbird" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "thunderbird-dev" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "thunderbird-gnome-support" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "thunderbird-mozsymbols" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "xul-ext-calendar-timezones" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "xul-ext-gdata-provider" }, { "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1", "binary_name": "xul-ext-lightning" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "96.0+build2-0ubuntu1", "binary_name": "firefox" }, { "binary_version": "96.0+build2-0ubuntu1", "binary_name": "firefox-dev" }, { "binary_version": "96.0+build2-0ubuntu1", "binary_name": "firefox-geckodriver" }, { "binary_version": "96.0+build2-0ubuntu1", "binary_name": "firefox-mozsymbols" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "thunderbird" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "thunderbird-dev" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "thunderbird-gnome-support" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "thunderbird-mozsymbols" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "xul-ext-calendar-timezones" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "xul-ext-gdata-provider" }, { "binary_version": "1:91.5.0+build1-0ubuntu1", "binary_name": "xul-ext-lightning" } ], "availability": "No subscription required" }