| Package | Affected versions | Patched versions |
|---|---|---|
| firefox | < 96.0 | 96.0 |
| firefox esr | < 91.6 | 91.6 |
| thunderbird | < 91.6 | 91.6 |
When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.
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