Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "121.0+build1-0ubuntu0.20.04.1", "binary_name": "firefox" }, { "binary_version": "121.0+build1-0ubuntu0.20.04.1", "binary_name": "firefox-dev" }, { "binary_version": "121.0+build1-0ubuntu0.20.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "121.0+build1-0ubuntu0.20.04.1", "binary_name": "firefox-mozsymbols" } ] }