| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 128.0 | 128.0 |
| thunderbird | < 128.0 | 128.0 |
Form validation popups could capture escape key presses. Therefore, spamming form validation messages could be used to prevent users from exiting full-screen mode. This vulnerability affects Firefox < 128 and Thunderbird < 128.
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