| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 128.0 | 128.0 |
| thunderbird | < 128.0 | 128.0 |
It was possible to prevent a user from exiting pointerlock when pressing escape and to overlay customValidity notifications from a `<select>` element over certain permission prompts. This could be used to confuse a user into giving a site unintended permissions. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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