While signing in with an account, the password for a previous account is kept

[obotisan]

[Affected versions]:

• Firefox 65.0.1

[Affected Platforms]:

• Windows 10 x64
• macOS 10.13
• Ubuntu 18.04 x64

[Prerequisites]:

• Sign in with a valid account (A) and save the email and password in the doorhanger.

[Steps to reproduce]:

1. Navigate to http://stage.firefoxmonitor.nonprod.cloudops.mozgcp.net
2. Log out from the account A.
3. Click on sign in and try to sign in with a different account (B).

[Expected result]:

• The fields in the Sign in page are blank.

[Actual result]:

• The password field is populated with the password from account A.

[Regression]:

• N/A

[Additional Notes]:

• This issue wouldn't be that strange if there wasn't a different page to load for typing the password.
• And the thing that makes this a real issue is that you can actually see the previous password (if you click on the eye symbol).

[groovecoder]

I think this is a bug with https://stable.dev.lcip.org/signup - not something we can fix on the Monitor side. @mozilla/fxa-core ?

[jrgm]

Was the browser set up with config to treat stable.dev.lcip.org as the fxa accounts domain, or was it just the default config.

Regardless, stable.dev.lcip.org's dockerd did restart itself (and all the containers) during it's scheduled weekly refresh, but it appears to have come back up correctly and automated tests are (mostly) all passing.

[rfk]

Sign in with a valid account (A) and save the email and password in the doorhanger.

It's specifically an issue with password-autofill on the FxA login form; I suggest migrating this to an issue at https://github.com/mozilla/fxa-content-server/issues for discussion, although I can't think of an obvious quick fix.