| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 115.0 | 115.0 |
| firefox esr | < 102.13 | 102.13 |
| thunderbird | < 102.13 | 102.13 |
A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.
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