How to Add Facebook Login on WordPress Website

フォームに記入するのが大嫌い！あなたはどうですか？
あなたもフォームに記入するのが嫌いですか?
じゃあ僕たちもペアだ！ 

Facebook login lets users sign in to a WordPress website using their Facebook account instead of creating yet another username and password.

And no, we are not alone in feeling this way. Forcing users to remember another login causes friction and directly impacts your website’s conversions. Just look at The Cost of Password Fatigue in 2026:

• Abandoned Logins: 55% of users have abandoned an account or created a new one simply to avoid going through a frustrating password reset process.
• Account Overload: The average internet user now manages between 100 and 150 online accounts.
• Password Reuse: An alarming 94% of passwords are reused or duplicated across multiple accounts, leading to severe security vulnerabilities.

あなたは、ログイン ページからの直帰率が高い Web サイト所有者ですか?おそらく、Web サイトに Facebook ログインを統合することで、この問題を大幅に軽減できるでしょう。 

Facebook を Wordpress Web サイトに追加する方法を正確に知りたい場合は、ここが正しいページです。

This guide shows how to configure Facebook login in WordPress using a plugin and Facebook Developer settings. Seems interesting? Let’s go ahead then. 

Adding Facebook Login to WordPress – Quick Overview

What Is Facebook Login in WordPress

Facebook login for WordPress allows visitors to sign in to a website using their Facebook account instead of creating a separate username and password. The feature works through Facebook’s OAuth authentication system, where the user verifies identity on Facebook and WordPress receives basic profile information such as name and email to create or log in to the account automatically.

Ways to Add Facebook Login on a WordPress Website

がある three common ways to add Facebook login to a WordPress website. The right approach depends on how much control you need and how comfortable you are with ongoing maintenance.

1. The most common option is using a social login plugin. This method handles authentication, permissions, and API changes for you. It is suitable for most WordPress websites.
2. Another option is manual integration using Facebook’s SDK. This approach requires custom development and direct handling of app credentials, redirect URLs, and user data.
3. Some websites also rely on third-party identity providers that sit between Facebook and WordPress. These services simplify setup but add an external dependency.

In this guide, the focus is on the plugin-based method using WP Social, which works well for most WordPress use cases.

Why Should You Add Facebook Login on Your WordPress Website?

Most internet users already have Facebook accounts, but that alone is not why Facebook login works well.

The real advantage is convenience. When visitors can log in with Facebook, they avoid creating another username and password. This reduces パスワード疲労, which happens when users are forced to remember credentials for many different websites.

It also removes the need to fill out long registration forms. Instead of spending time entering details, users can sign in quickly and start exploring your website right away.

In practice, Facebook login works best for content-driven platforms, membership sites, and online communities where fast access improves user engagement. However, it should be considered carefully because it introduces dependency on a third-party platform.

The real advantage is convenience. Users can log in quickly without creating another account or remembering another password.

Here are some key reasons for Facebook integration on WordPress website:

• Reduced password fatigue since users do not need to create another password
• Faster login and registration without long forms
• More reliable profile information such as verified names and email addresses
• Better onboarding experience for first-time visitors

Recommendation:
Use Facebook login as an optional shortcut, not a replacement for email login. This keeps flexibility without dependency.

何を求めている？ WordPress Web サイトに Facebook ログインを追加するために従う必要があるすべての手順を理解するには、この投稿を最後まで読み続けてください。

Before You Continue: Is Facebook Login Right for Your Site?

Before moving forward, it is important to decide whether Facebook login actually fits your website.

Facebook login works well if your site targets general users, communities, or content-based platforms where quick access matters more than strict user qualification.

However, if email ownership is critical to your business, or if your site operates under strict compliance requirements, relying too much on social login may create issues later.

If your audience values speed and convenience, continue with the setup.
If control and data ownership matter more, use Facebook login for WordPress carefully and always keep alternatives available.

必要なものはこちら

If you do not have deep coding knowledge, it is better for you to choose a social login plugin to add a Facebook login to your site. 

Wp Social is one of the best social media plugins for WordPress that can help you achieve your goal. The decision-making and setup principles explained in this guide apply regardless of the plugin you choose. Apart from letting you add a Facebook login button at any place on your website, it also features social share and social count options. So, if you get Wp Social, you are actually getting a 3-in-1 plugin. The video below walks through the same setup process visually on how to add social login for WordPress.

Best Plugins to Add Facebook Login to WordPress

Before setting up Facebook login, it helps to understand which plugins can handle the integration. Several WordPress plugins support social login, but they differ in features, supported networks, and ease of setup.

Facebook ログインを WordPress ウェブサイトに追加する方法 (ステップバイステップ)

If you want to know how to integrate the Facebook login on your WordPress website seamlessly with a plugin, I am going to give you a step-by-step detailed guideline now using WPソーシャル. Follow the steps properly and add Facebook to WordPress for login.

先に進みましょう： 

Step 1: Install a Facebook Login Plugin for WordPress​

To install the Facebook login plugin for WordPress:

● WordPress Web サイトの管理パネル領域にログインします。 

● プラグイン ➔ 新規追加に移動します。

● 検索フィールドに「Wp Social」と入力します。

• を見つける "Wp Social-Social ログインと登録、ソーシャルシェア、ソーシャルカウンター」の検索結果から。次に、「今すぐインストール」をクリックします

• After the end of the installation process, activate the plugin.

ステップ 2: Facebook 開発者アカウントを作成する

• 案内する https://developers.facebook.com/apps/
• Login to your Facebook account If you are logged out. 
• Click on the “Get Started” section to start creating your developer’s account. Follow the instructions step-by-step to complete your registration process for a Facebook developer account.

ステップ 3: Facebook アプリを作成する 

• After completing your registration as a developer, you’ll be redirected to the Facebook app creation page. Click on “アプリの作成” 先に進む

• At this step of app creation, set a meaningful App Name and Add contact email. After that, click on “Next”.

• You must select ‘Other’ as the use case here. Click on ‘Next’ when you are done.

Now, select Consumer and press the ‘Next’ button.

In this step, you can check the whole details again and press the ‘Next’ button.

After that, you may be required to log in to your Facebook account again.

ステップ 4: Facebook ログインを構成する

Once the app is created, you will see the Facebook App dashboard.

After the process mentioned above, you’ll be taken to the ‘Products’ page located under Dashboard. Click on the ‘+’. Find out ‘Facebook Login’ from the list and click on ‘Set Up’.

Go to Settings under the Facebook Login app. You have to enter Valid OAuth Redirect URIs under Client OAuth Settings.

To get the Valid OAuth Redirect URIs, you have to go to your WordPress admin area.

Navigate to WP Social ➔ Social Login ➔ Providers➔ Facebook➔ Click on the toggle button or Getting Started.

• You’ll now see a link to be used as Valid OAuth Redirect URIs. Copy it and go back to Facebook Login app settings to paste that on the ‘Valid OAuth Redirect URIs’ field.

• Now, go to the ‘Basic’ submenu under Settings. Copy the App ID and App Secret for using those in the Wp Social app. Fill up other fields and click on ‘Save Changes’ when you are done.

Important Setup Insight (Often Missed)

Many Facebook login setups appear to work but fail in real usage.

This usually happens because of small configuration issues that are easy to overlook. For example, a mismatched OAuth redirect URI or unnecessary permission requests can silently break the login process.

Always make sure that:

• Your Facebook app is set to ライブモード
• The OAuth redirect URI matches exactly
• Only the required permissions are requested

A visible login button does not always mean the login flow is working correctly. Testing matters more than installation.

ステップ 5: Wp Social でアプリ ID とアプリ シークレットを使用する 

• Once you’ve completed creating an app on Facebook, go to the WP Social login from the WordPress dashboard. Navigate to Social Login ➔ Providers. Switch the left button below Facebook ‘ON’ and then click ‘Settings’.

• Enter on the Settings tab and paste the App ID and App Secret received from Facebook. Once you are done, click on ‘Save Changes’.

ステップ6: WP Socialプラグインの設定を構成する

• ● ソーシャル ログインのグローバル設定に移動し、Facebook ログインを配置するページとその位置を選択します。完了したら、変更を保存します。

また、WordPress ウェブサイトの他の場所で使用できるソーシャル ログイン ショートコードのリストも取得できます。 

● 次に、スタイル設定に行き、お気に入りのスタイルを選択して、「変更内容を保存' をクリックして選択を実行します。

How to Know Your Facebook Login Is Working

After completing the setup, do not stop at seeing the login button.

You should test whether:

• New users can log in and get WordPress accounts created
• Existing users can log in again without errors
• Facebook login works properly on mobile browsers
• Logout and re-login works as expected

When configured correctly, Facebook login usually results in faster first-time access and fewer abandoned registrations. If login numbers increase but engagement drops, placement and usage should be reviewed.

それだけです。 WordPress ウェブサイト上のどこでも、お気に入りのスタイルで Facebook ログインを正確に確認できるようになりました。これで、いくつかの簡単な手順で Facebook を WordPress に追加する方法がわかりました。 Web サイトにソーシャル ログインを追加したい場合は、次のことができます。 この投稿を参照してください.

Manual Facebook Login Integration (Advanced Method)

Facebook login can also be added manually without using a plugin. This approach is typically used when a site needs full control over the authentication flow. It requires implementing Facebook’s OAuth flow using the Facebook SDK and handling authentication in WordPress.

You will have to work directly with Facebook’s JavaScript or PHP SDK. Means you must configure the App ID and App Secret securely, set correct redirect URIs, and manage permission scopes such as public profile and email.

This method also requires ongoing maintenance. Facebook API changes, permission reviews, and security updates must be handled manually.

Because of this complexity, manual integration is generally recommended only for developers or highly customized WordPress setups.

Common Facebook Login Issues and Fixes

Facebook login on WordPress issues are often caused by configuration mismatches rather than plugin errors.

A redirect URI mismatch usually occurs when the callback URL in Facebook Developer settings does not exactly match the WordPress login URL.

If login works only for admins, the Facebook app may still be in development mode and not publicly available.

Some users may not receive an email address if the email permission is not approved or available on their Facebook account.

Login buttons may not appear if page caching or CDN settings block dynamic scripts.

Facebook login on WordPress also requires HTTPS. Sites without a valid SSL certificate may fail authentication.

Here is a table showing the cause and solution of specific issues.

Security and Privacy Considerations

When configuring social login plugins, ensure they comply with the IETF OAuth 2.0 Security Best Current Practice そして OWASP Authentication Guidelines to protect your WordPress site from credential stuffing and token hijacking.

Facebook login uses OAuth authentication, which means your WordPress website does not store the user’s Facebook password. Facebook verifies the user’s identity and shares limited profile information with your website.

However, website owners should:

• request only necessary permissions
• keep traditional email login available
• mention social login in their privacy policy

最終的な考え

Facebook login is one of the easiest ways to reduce registration friction on WordPress websites. By allowing users to sign in using an existing social account, websites can improve user onboarding and reduce abandoned registrations.

However, here are some key points that you should keep in mind –

1. Keep email login available
2. Request minimal permissions
3. Test every login scenario

Finally, when Facebook Login is used as a shortcut, it improves access. However, when used blindly, it creates silent drop-offs. So, choose based on your audience, not trends.

Now that you know how to integrate Facebook social login on your website, it is time to check and try. Follow the steps mentioned above and you’ll get things done. Hope that you’ll be successful in adding a Facebook login for WordPress. The exact plugin may change over time, but the decision factors and setup checks covered here remain the same.

Frequently Asked Questions (FAQ) on Login with Facebook on WordPress

PHP を使用して Facebook を WordPress ウェブサイトに追加できますか?

はい、十分な技術的知識があれば、PHP を利用して WordPress ウェブサイトに Facebook ログインを追加することもできます。ただし、プロジェクトに PHP 用の Facebook SDK をインストールする必要があるため、かなりの時間がかかります。

Facebook ログイン ボタンをカスタム WordPress ページに公開できますか?

幸いなことに、そうです！ Wp Social は、WordPress ウェブサイトのどこでも Facebook ログイン ボタンを使用できるようにするショートコードを提供します。

Is Facebook login still relevant today?

Yes, but it should be used selectively. It works best as a secondary login option rather than the primary one.

What happens if Facebook is blocked or down?

Users will not be able to log in with Facebook. That is why email or username-based login should always remain available.

Is Facebook login safe?

Yes, when configured correctly. However, you should request minimal permissions and clearly inform users about what data is being accessed.

Can the same Facebook App be used on multiple WordPress websites?

Yes. A single Facebook App can be used on multiple websites as long as all domains are added to the app settings and the redirect URIs are configured correctly.

What permissions are required for Facebook login?

At minimum, Facebook login requires access to the public profile. Email permission is commonly requested but may require review and is not guaranteed for all users.

Does Facebook login work with WooCommerce or membership plugins?

Yes. Facebook login works with WooCommerce and most membership plugins as long as user registration is enabled and the plugin supports standard WordPress authentication.