The change, to curtail access to the Canvas API, is incremental and likely to be limited in how it is visible to regular users. However it signals some progress in a collaboration with the Tor project to incorporate code and ideas that benefit the privacy features of Firefox and Tor Browser. The Register’s write up includes a pretty good explainer on fingerprinting and why finding ways to mitigate it is important.
Browser maker turns to anonymizing network for anti-identification technique