Maybe; I'm not super familiar with Canvas Blocker. One thing you have to be careful with when blocking APIs is that you don't generate a negative fingerprint by your restrictions, which is every bit as effective as a positive fingerprint would be. Our farbling is pretty good, and will be getting even better later this month :)
Despite its name, Canvasblocker actually does that, it sends slightly shifted API data, not only for canvas but for most fingerprinting methods.
Nonetheless I'm happy to hear about the improvements in Brave. I've actually shifted from Firefox to Brave since I'm expecting Webkit/Blink to become a 'Linux kernel' for web technologies and thus the web.
Keep up the great work! The only true remaining nitpicks I still have with Brave (after the introduction of Sync V2) are
1. iOS Brave being based on Firefox instead of Chrome iOS (I am aware of the technical cost of switching codebase)
2. Prevent browser close on last tab close
If those two existed Brave would be perfect for me.
Does this effectively do the same as the 'Canvasblocker' extension does for Firefox?