[Android] Facebook Authentication Error: com.facebook.FacebookOperationCanceledException: remote_app_id does not match stored id

Fixing the Facebook "remote_app_id does not match stored id" error by logging the correct Key Hash from the running Android app.

[Android] Facebook SDK Error: Failure delivering result ResultInfo{who=null, request=64206, result=0, data=null} to activity {com.example/com.facebook.LoginActivity}: java.lang.NullPointerException

The Facebook SDK for Android v3.0 login NullPointerException is a known bug fixed by upgrading to v3.0.1.

[Facebook API] How to Post Photos to Albums and Tag People

A memo of reference links for posting photos to a Facebook album and tagging people via the Graph API.

3 Essential Sites for Facebook App Developers: 'Developer Blog', 'Developer Roadmap', 'Facebook Stack Overflow' + 5 Japanese Sites

Three official Facebook developer sites plus five Japanese resources for keeping up with API changes.

[Facebook] Handling Revoked Permissions - 失効権限の取り扱い

A quick reference from Facebook's Handling Revoked Permissions doc on dealing with declined or revoked scopes.

How to Enable Facebook App Cookies in IE

Fix third-party cookie loss in Facebook iframe apps on IE by sending a P3P policy header (Rails / PHP).

How to Embed a Facebook App Under Development into a Facebook Page

Step-by-step notes for embedding a Facebook app under development into a Facebook Page.

[Facebook] How to Configure The New Auth Dialog

Notes on configuring The New Auth Dialog for a Facebook App, with settings and dialog screenshots.

[Facebook] Upgrade Your App to OAuth 2.0 and HTTPS by October 1st

The Facebook email announcing that OAuth 2.0 and HTTPS became mandatory for all apps from October 1, 2011.

Facebook App/Page/Ad Terms and Conditions Link Summary

A link roundup of the official policies for Facebook apps, Pages, and ads.

[Facebook] Received Warning Email "Notice of Violation: Privacy Policy"

The Facebook privacy policy violation warning email and how to fix it in the Auth Dialog settings.

Facebook App SSL Authentication Becomes Mandatory from October 1, 2011

SSL becomes mandatory for Facebook apps and iframe Page tabs from October 1, 2011 — a summary with links.

Using Facebook Business Manager's 'Ad Account Partner' Feature for Facebook/Instagram Ad Management Services

Setup steps for running Facebook/Instagram ads on behalf of an advertiser using Business Manager partners.

How to Contact Facebook Business Manager Support Team (Chat & Email)

How to reach Facebook Business Manager's support team via chat or email, step by step.

[Facebook API] Function setAutoGrow() to Remove Scroll Bars in IFrame Tab Pages

Hide scroll bars on Facebook iframe tab pages by moving from setAutoResize to FB.Canvas.setAutoGrow().

[Facebook] Comments Box Plugin Comment Display Order is 'Social Relevance' Order, Not Chronological

Facebook's Comments Box plugin sorts by Social Relevance, not chronology, and can't be customized.

[Facebook] Developer Spotlight Summary

Links to Facebook Developer Spotlight case studies — Pinterest, Goodreads, The Guardian, and more.

[Facebook] Developer/HTML5 Blog, Weekly Platform Updates, Platform Status and Other Information Now Available via Email Subscription

Facebook Developers now offers email subscriptions to its Developer Blog, HTML5 Blog, Weekly Platform Updates, and Platform Status.

[Facebook] Graph API Explorer - A Tool for Easy Social Graph Testing

A quick look at Facebook's official Graph API Explorer, a browser-based tool for testing social graph queries.

[Facebook] Getting Profile Image URLs in Various Sizes

How to fetch Facebook profile picture URLs via the Graph API, with size options and SSL support.

[Facebook] Is the Graph API Request Limit 600 Times Per Minute?

A memo about the unofficial claim that Facebook's Graph API is limited to around 600 requests per minute.

[Facebook App] JavaScript SDK Must Always Be Used with https

Why you should always load the Facebook JavaScript SDK over https to avoid mixed-content issues, especially in IE.

[Facebook] Language Code and Country Code (locale) List

A reference table of language and country codes usable with the locale parameter in Facebook's APIs.

How to Bulk Export Facebook Messenger Messages

Two ways to bulk export Facebook Messenger threads: the official Download Your Information tool and a full-page screenshot with Awesome Screenshot.

[Facebook] Summary of Useful Articles for Smartphone App Development

A curated list of Facebook Developer resources for building smartphone apps, split into mobile web, iOS, and Android tracks.

[Facebook] Offline Access Permission to be Completely Discontinued on May 1, 2012

A note on Facebook's plan to fully retire the offline_access permission on May 1, 2012, and what it means for users and developers.

How to Add a Facebook App as a Tab on a Facebook Page

How to install a Facebook app as a Page tab using the /dialog/pagetab endpoint and its parameters.

[Facebook] Reasons Why Images Become Rough and Blurry, and Solutions

Why Facebook Page profile images look blurry (JPEG mosquito noise) and a suggested workaround using more complex colors.

[Facebook] Page Width of Page Tab Apps/Canvas Apps

A quick reference for the page width of Facebook Page Tab apps (520px) and Canvas apps (760px).

[Facebook] Page Tab App (iframe) Redirect Problem and Solution

Why redirects from a Facebook Page Tab iframe blank the screen, and how `target="_top"` fixes it.

How to Change Custom Tab Images on Facebook Page Timeline

A short note with a reference link on changing custom tab images on Timeline-style Facebook Pages.

[Facebook] How to Display Page Wall Icons with Proper Size Matching for Better Visibility

A quick note on getting Facebook Page wall thumbnails to look crisp by matching their pixel dimensions.

[Facebook] About @proxymail.facebook.com Email Addresses

A note on the @proxymail.facebook.com address behavior in Facebook apps and its later specification change.

For Facebook API Research and Questions, 'Facebook Stack Overflow' is Recommended

For Facebook API research and questions, Facebook Stack Overflow is the recommended resource.

Must-See Support Site for Facebook Developers: 'fb.developers'+'

A quick introduction to fb.developers'+, a Japanese-language support site for Facebook developers.

[WordPress] How to configure All in One SEO Pack to display Facebook og:image nicely

Setting All in One SEO Pack's OG:Image Source to First Attached Image so Facebook picks up the right og:image.

[WordPress] How to resolve Facebook Sharing Debugger 'The following properties are required: fb:app_id' error

Fixing Facebook Sharing Debugger's fb:app_id error with Yoast SEO.

[WordPress] Changing 'WP-OGP' Thumbnail Image og:image

How I replaced the WP-OGP default thumbnail by changing the image filename and updating wp-ogp.php.