Threads is testing Facebook account sign-ups

The option is mentioned in a support article but doesn't appear to be widely available yet.

Threads is testing letting you sign up with a Facebook account rather than an Instagram account. The new option, spotted by Social Media Today, doesn't appear to be widely available yet, but is already mentioned in a Meta support article.

Besides making it easier for people who don't have an Instagram account to quickly create an account on Meta's X and Bluesky competitor, this new Facebook sign up option should influence the kind of posts and ads that get recommended to you.

"Signing up to Threads with your Facebook account helps unlock features that work across Threads and Facebook, like using the same login info to access both apps," Meta writes in a support article. "If you create a Threads profile with your Facebook account, we’ll combine your info across Threads and Facebook."