Well, yeah, the feature itself is not a particular accomplishment, really it's been in Firefox for years, you just had to enable it with some about:config-flag.
The big news is them enabling it by default in some fashion (that is when you're in Private Browsing), meaning that all users now have this, not just the 0.1% who understand referrers (and have not forgotten to enable this the last time they installed Firefox).
As a power user who knew about this, you might not particularly care, but for users in general it's great, while it pisses off webpage owners.
Then again, even as a power user it's impossible for you to know about all of these sort of config options, so you might care to use a browser which tries to help its users out while having to keep an eye on not pissing off webpage owners too much, rather than a browser that tries to maximize revenue for webpage owners while trying its best to hide all the ways it infringes privacy from its users.
The big news is them enabling it by default in some fashion (that is when you're in Private Browsing), meaning that all users now have this, not just the 0.1% who understand referrers (and have not forgotten to enable this the last time they installed Firefox).
As a power user who knew about this, you might not particularly care, but for users in general it's great, while it pisses off webpage owners.
Then again, even as a power user it's impossible for you to know about all of these sort of config options, so you might care to use a browser which tries to help its users out while having to keep an eye on not pissing off webpage owners too much, rather than a browser that tries to maximize revenue for webpage owners while trying its best to hide all the ways it infringes privacy from its users.