How do I connect to my password keychain (Mac)

Description of the issue: How do I connect to Keychain Manager - I want to use Brave as my default browser, However do not remember my existing login info for all my sites. Do not want to have to use Safari, Thank you!

Steps to Reproduce (add as many as necessary): 1. 2. 3.

Actual Result (gifs and screenshots are welcome!):

Expected result:

Reproduces how often:

Operating System and Brave Version(See the About Brave page in the main menu):
Mojave Ver10.14.6
Additional Information: