Revert to legacy SameSite behavior on specific domains
- Policy ID
- LegacySameSiteCookieBehaviorEnabledForDomainList
- Scope
- Computer Configuration, User Configuration
- Supported on
- Firefox 96 or later
- Source
- Mozilla Firefox Policy Templates (version 8.3)
- Category
- Mozilla › Firefox
Description
If this policy is enabled, Firefox will revert to the legacy behavior of SameSite for the specified domains. This means that cookies that don't explicitly specify a SameSite attribute are treated as if they were SameSite=None.
If this policy is disabled or not configured, Firefox will enforce SameSite=lax for all domains.
Options
Registry
ComputerHKEY_LOCAL_MACHINE
HKLM\Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList View registry values
- (list values)REG_SZ
UserHKEY_CURRENT_USER
HKCU\Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList View registry values
- (list values)REG_SZ