*Safari blocks third party cookies from sites you haven't previously visited and received cookies for by default. Mozilla experimented with similar behaviour but decided against it.
Decided against merging that default to the Beta channel. I believe "allow visited third party cookies" is the default in the Nightly and Aurora channels.
Comments
Mozilla doesn't seem to be breaking any new ground here. Safari already blocks third party cookies by default.
*Safari blocks third party cookies from sites you haven't previously visited and received cookies for by default. Mozilla experimented with similar behaviour but decided against it.
Decided against merging that default to the Beta channel. I believe "allow visited third party cookies" is the default in the Nightly and Aurora channels.