A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Apr 16, 2019 | Feb 28, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Feb 28, 2019 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade firefox | Oct 27, 2018 | Oct 23, 2018 |
| Debian | — | Upgrade firefox-esr | Oct 25, 2018 | Oct 23, 2018 |
| Freebsd | — | Upgrade firefox-esrUpgrade waterfoxUpgrade firefoxUpgrade linux-firefoxUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade libxulUpgrade seamonkeyUpgrade thunderbird | Oct 24, 2018 | Oct 23, 2018 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade www-client/firefox. | Nov 9, 2018 | Nov 9, 2018 |
| Mfsa2018 26 | — | Upgrade to Mozilla Firefox version 63.0Upgrade to the latest version of Mozilla Firefox | Oct 24, 2018 | Oct 23, 2018 |
| Mfsa2018 27 | — | Upgrade to Mozilla Firefox ESR version 60.3Upgrade to the latest version of Mozilla Firefox | Oct 24, 2018 | Oct 23, 2018 |
| Oracle Solaris | — | Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 60.5.0-11.4.6.0.1.4.0 on Solaris 11.4Upgrade web/browser/firefox to version 60.5.0-11.4.6.0.1.4.0 on Solaris 11.4Upgrade mail/thunderbird to version 68.6.0-11.4.21.0.1.69.0 on Solaris 11.4 | Feb 20, 2019 | Feb 20, 2019 |
| Oracle_linux | — | Upgrade firefox | Nov 2, 2018 | Oct 23, 2018 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade firefox | Oct 25, 2018 | Oct 24, 2018 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-devel | Oct 26, 2018 | Oct 23, 2018 |
| Ubuntu | — | Upgrade firefox | Nov 7, 2018 | Oct 23, 2018 |
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