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In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Oct 18, 2018 |
| Debian | — | Upgrade thunderbird | Sep 18, 2018 | Jun 26, 2018 |
| Freebsd | — | Upgrade seamonkeyUpgrade linux-firefoxUpgrade firefoxUpgrade libxulUpgrade waterfoxUpgrade firefox-esrUpgrade thunderbirdUpgrade linux-thunderbirdUpgrade linux-seamonkey | Jun 27, 2018 | Jun 26, 2018 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin. | Oct 3, 2018 | Oct 2, 2018 |
| Mfsa2018 15 | — | Upgrade to Mozilla Firefox version 61.0Upgrade to the latest version of Mozilla Firefox | Jun 27, 2018 | Jun 26, 2018 |
| Mfsa2018 16 | — | Upgrade to Mozilla Firefox ESR version 60.1Upgrade to the latest version of Mozilla Firefox | Jun 27, 2018 | Jun 26, 2018 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 60.0 | Aug 7, 2018 | Aug 6, 2018 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4 | May 30, 2019 | Oct 18, 2018 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbirdUpgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaThunderbird-translations-other | Jun 29, 2018 | Jun 26, 2018 |
| Ubuntu | — | Upgrade firefox | Jul 12, 2018 | Jun 26, 2018 |
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