As Panopticlick shows, if you can run JS, you can already probably uniquely fingerprint a user.
The GL_RENDERER string will add a few more bits of identifying information, but allows driver specific workarounds for buggy implementations. It's user agent sniffing all over again.
As Panopticlick shows, if you can run JS, you can already probably uniquely fingerprint a user.
The GL_RENDERER string will add a few more bits of identifying information, but allows driver specific workarounds for buggy implementations. It's user agent sniffing all over again.