Develop Reference

Android Facebook Share Dialog Blocks Login Due To Embedded Browser

I am using the cordova-plugin-facebook-connect plugin to launch the share dialogs from Facebook. iOS is working great, and Android is working great when the app is installed.
On Android, if the app is not installed, it tries to share with an embedded web browser. After entering my email and password, I get an error saying that logging into Facebook from an embedded browser is disabled. I am using the latest version of the plugin, which SHOULD mean the latest Facebook Android SDK
I have looked on our business dashboard and made sure that embedded login is allowed:
...but that mentions OAuth so maybe it's not relevant. I have uploaded the debug and production key hashes to the dashboard
I have found nothing on the Facebook docs and I haven't gotten an answer from the Facebook developer community.
To sum up:
If the app is installed, it is all good. Without the app, it uses the embedded browser, but Facebook is blocking the login. I would love to know WHY and how to enable it.
UPDATE: Using a Facebook generated test user worked
Cheers

As Recommended by Facebook please update Dependencies to
implementation 'com.facebook.android:facebook-android-sdk:[8,9)'
Ref :
https://developers.facebook.com/docs/android/componentsdks/
https://developers.facebook.com/blog/post/2021/06/28/deprecating-support-fb-login-authentication-android-embedded-browsers/

Facebook has let everyone know that they are deprecating support for FB Login on Android embedded browsers:
https://developers.facebook.com/blog/post/2021/06/28/deprecating-support-fb-login-authentication-android-embedded-browsers/
As of right now, they are blocking High Risk users with this error and will block everyone starting in August. Their suggestion is to use a later version of the SDK (8.2+) to avoid this

I can't comment (yet) so I'm creating this answer to ask you if you could try and remove all (!) local browser data, i.e. Cookies and local storage, etc. This is the first thing that came to my mind when I read "works with another login".

The issue is resolved if the user has enabled 2-factor authentication via facebook.
I have tested this with multiple real users now and for example enabling sms-2fa does enable the user to login into apps with an embedded browser. The login happens as usual if the user has the facebook app installed on the same device and already logged in on the facebook app with 2fa. Otherwise, facebook will request the 2fa when logging in but a login is possible again.
I have however found out that some apps seem to crash if they had been opened before 2fa had been activated on a phone with a facebook app and those apps need to restarted before trying to login on them again.
From this we can assume facebook blocks out embedded browsers due to their risk assessment. 2fa is specifically presented as an option to login via unsafe browsers within the security options of each user individually and sadly does not seem to be an issue on the side of who ever is using an embedded browser within their app.

This also happened to me but I've fixed it.
I just uninstalled my Facebook application and used my browser instead.

Try installing another browser, like Firefox, and set this the default browser, then login again with your Facebook credentials. It worked to me. I guess the problem is with chrome. For me, it worked when I set Firefox my default browser.

For your account security, logging in to Facebook from an embedded browser is disabled. You may be able to continue by updating the app you're logging in from and trying again.

Login with Facebook option trigger suggest to download an app

Yesterday I logged in to Airbnb with my Facebook account on my OSX. Shortly later I got a notification both on my iPhone and computer saying
"Airbnb is available to install on your iPhone"
My question is, does anyone here know how this was done? Is this a feature available to anyone who creates Facebook login? Any advice on how this was done is well appreciated.
Sincerely
Axel

I bet the notification is sent to you by Airbnb, right? If so, it's pretty easy to do. You give your facebook account information to Airbnb by login with facebook in there webpage. Then they just send a graph api request to facebook with your authorization access token, and you get an notification. For details you can refer to doc here: https://developers.facebook.com/docs/games/notifications

I found out what I was talking about. Facebook is adding a new feature which ask users if they want to get a link to the mobile app.
This is in Beta right now but you will automatically eligible for the feature if:
You have integrated the new Facebook Login on your website. You must be using at least version 2.0 of the Graph API and Login Dialog. Send to Mobile is not available for apps which invoke the Login dialog using Graph API v1.0.
You have integrated Facebook Login into your iOS or Android app. The "Single Sign On" switch within iOS and Android section of your app's dashboard must be set to "Yes"
Added your iOS App Store ID and/or the Android package name under which your app is listed in Google Play to your Facebook app's dashboard.
https://developers.facebook.com/docs/facebook-login/send-to-mobile

Link to login to social Media from app

In my app I want to have a link or button that can use stored credentials to login to social media sites - say facebook. But, since I plan on having a multiple links/buttons to different sites that may use different login info, I cannot force users to login to my app using any of the social media credentials.
Please forget the storing of credentials for now - that is a different issue altogether.
My question is Can I send the user's info to Facebook to allow them to login without having to take them to the login screen? If so, where to best find the information to do that?
Sorry if this is a noob question, but I am a noob to app dev and still trying to get my direction. Any sites or links with information would be appreciated.

sorry for the answer but from my experience you need to go through Facebook API to log in an android application using facebook,same for other social network. No clue what you wanted to do use a HTTP POST with the credential ?
There is a serious security issue with what you're trying to do, because it's you're application that handles the social network credential and so you would need to encrypt them store them and so on...
So if you want to give a try to Facebook Android API it's here : https://developers.facebook.com/docs/android/getting-started/

Dealing with the Facebook API is too much easy. You will follow some steps to import it into your project. Register your App on facebook developer site. Put the facebook button into your layout.
When the user clicks on the button the API will handle all the subsequent steps starting from taking the user username and password and will reply to you with a temporary accessToken that will be valid for two months. This is the only communication way with Facebook API, if you want to give the Facebook API any info with any other way. I am sorry to tell you you will not be able to do that.

Native Facebook Login experience via browser

I have seen several flavours of this question going around but nothing exactly specific nor answered so trying it myself.
I am trying to build a Facebook login experience via the browser into my Facebook-based app that will require the users to not remember their passwords as much as possible. This means that if
they log in via their desktop browser and are already logged in, it will only ask them to 'OK' the permissions
they log in from their mobile browser and are logged in via their respective native app (Android/iOS), it will simply redirect them to the native app, ask for the app permissions and redirect them back to the success page on the browser
they log in from any browser and are not currently logged onto Facebook in any form, they have to enter their password and authenticate (whether natively or via browser this does not matter)
I know how the first can be done - that is pretty straightforward using the JS SDK. The second point is the tougher bit.
I am aware of existing custom URL schemes for Android and iOS but nothing specifically really mentions how that can be used for authentication and/or authorisation of Facebook apps. Does anyone have any ideas on how this can be done?
Thanks!

In iOS use iOS facebook SDK. It will handle the login process effectively in different situations depending on the resources available. Check out this answer to know about different login flows
Integrating facebook

You're looking for Single Sign On behavior- in Facebook, use the native SDK, and instructions for setting up SSO. It includes entering your bundle id in the settings and setting up a referring url name (the name of your app usually). So what happens is- if you launch safari mobile, and log into facebook. Then, launch your app, with good integrated SSO. Then, it won't require you to login/pass, because it knows you've authenticated via browser. Same with Android.

I think what you are looking for (at least for Android) is starting an Intent on certain schema that will open Facebook app.
This is answered here Android facebook intent to show profile with class com.facebook.katana.ProfileTabHostActivity doesn't work any more

How to get facebook authentication from Android login form

Is it possible to login into facebook using my own login form in Android & get the facebook user id? I just want to validate the users without need them access their facebook.
In the Android facebook tutorial, the app have to open facebook first so that user can login but there is no automatic close after user login successfully.
Thanks in advance

No, you don't have a way to log the user in through facebook without using their official endpoints.
You can open some sort of browser with the authentication dialog (or the open graph one) but that still mean using their forms/ui (what ever you want to call it).
You should just use the android sdk without using the SSO, that way the sdk won't call the facebook application that is installed on the device (if at all) and will just call the auth dialog for you.
This is a better solution for you since it "abstracts" some things from you, takes care of the access token and more.
Here's a thread about disabling the SSO: How to disable Facebook single sign on for android - Facebook-android-sdk