Description of the issue:
I recently moved to the Brave browser and everything has been smooth except this. I use Firebase at work but I am not able to use the site, I get a cookie mismatch error. I’ve tried clearing cookies, logging out and logging back in but it doesnt work.
Steps to Reproduce (add as many as necessary): 1. 2. 3.
- Launch browser, navigate to console.firebase.google.com
Actual Result (gifs and screenshots are welcome!):

Expected result:
Firebase console opens and is usable.
Reproduces how often:
Every time.
Operating System and Brave Version(See the About Brave page in the main menu):
MacOS Mojave 10.14.5 & Brave 0.66.99
Additional Information:
What sheild settings are enabled? does it work with Sheilds disabled?
I created a test database without issue here, though directions to replicate any issues would help
Yup, I have tried it with Shields disabled as well. It keeps giving the same error.
I was using Firefox before this so when I installed Brave, I migrated all the settings, cookies included, to Brave. Every other Google product (Analytics, Mail etc) works fine except Firebase.
Could you try on a new profile (maybe Brave Nightly?) see if that changes things (without importing any settings over).
So it works in the Nightly version. Something must be wrong with my cookies 
Could try clearing your cookies/cache and retesting
Well, it works now. Earlier, I searched for terms like google, firebase etc and deleted those cookies. Right now I did a full clear and it works 
Clearly something was going wrong with cookie migration.
Thank you for your help!