Does it mention something about “your login key was not unlocked when you logged in”?

If so, open up the application called “Passwords and Keys” (or “seahorse”), right click on “Login” > Change password and set it to match your Linux user account.

I’ve been keeping a sandboxed chromium on my machines only to access Facebook. For everything else I use qutebrowser.

When chromium started doing this (letting it access my keyring was not an option), I decided that instead of looking in the config or switching to firefox, it’s time to finally drop Facebook from my life. Problem solved, hundreds of megabytes freed :)

run with --password-store=basic flag from the command line. if that helps, simply make a .desktop file with the proper Exec= field. let me know if you need more details.

UPD: just saw there was an earlier response on this! hope that helped.