Login via Firefox browser doesn't work

[Faberman]

Checklist

• I have used the search function for open and closed issues to see if someone else has already submitted the same bug report.
• I will describe the problem with as much detail as possible.
• If the bug only occurs with a certain link, post, image..., I will include the URL.

App version

7.4.1

Where did you get the app from

Other

Android version

Android 10 LineageOS 17.1 / Android 12 AOSP

Device model

No response

First occurred

No response

Steps to reproduce

Firefox 134.0.2 (set as default browser)
Infinity 7.4.1

1. Open Infinity for Reddit;
2. Tap 'Add an account';
3. User Agreement appears -> Agree;
4. Use bottom right button for login -> login page opens;
5. Enter username and password -> Login;
6. Promt: 'App would like to connect with your Reddit account' -> Accept;
7. goto 6

Example post, link, markdown...

Infinity app appears in the list on https://www.reddit.com/prefs/apps/ at step 6 as intended.

Turning 'Enhanced tracking protection' off in Firefox doesn't help.

I set Firefox setting 'Open links in app' to 'Ask before opening' to take a screenshot of the redirect link:

I also tried Firefox 135.0 without success.
Some other browsers I tested:

• Cromite - login doesn't work.
• Chrome - login works.
• Brave - login works.

Expected behaviour

Signing in via Firefox should work.

Current behaviour

Signing in via Firefox doesn't work.

Logs

No response

[xCROv]

Having the same issue. When getting to the login screen and typing my account credentials I see "Something went wrong logging in. Please try again." as a banner error or "Server error. Try again later."

Account credentials are correct. When pushing the "->]" button in the bottom right to use an external chromium based browser I'm shown the normal authentication flow and oauth acceptance page for my user account.