Not a 1-to-1 parity at this time, but Brave offers parallel profiles. You can have one running personal interests, while the other has professional interests. Each profile is able to host a unique session for Facebook, etc. Brave already prohibits cookie and data bleed-over from one domain to another.
I suspect so, but don't know the details of FPI in Firefox. We don't permit cookies and storage access by third-parties, while also blocking known bad-actors entirely. We also "farble" APIs to create noise for those who do have access. If there are any specific scenarios or questions you have in mind, I'd be happy to discuss further.
I don't think it's the same. There is a list of things that Firefox isolates per-domain here [1], it's much more than cookies. There is a Brave ticket here but not much has happened: https://github.com/brave/brave-browser/issues/1053
Would Brave's parallel profiles allow me to be signed in to 2 different AWS accounts?
I've tried this in Multi-Account Containers for Firefox and SessionBox in Chrome, and they're both pretty buggy, e.g. the console's username menu indicates I'm in account "A", but I'm seeing resources listed from account "B", or EC2 will work fine but clicking over to ECS prompt me to sign in again.
Correct; your AWS session would be scoped to your profile. You could be using your own personal account in the "Personal" profile, and your professional/corporate account in your "Work" profile.
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.