1.How to link Etsy to facebook?
To link your shop to a Facebook page, follow these steps:
Click the Your Shop link along the top of any Etsy page.
Click the Info & Appearance option under Shop Settings on the left side of the page.
Click the Connect with Facebook link.
Click your shop's page.
2.How to sign into Etsy using facebook?
First,you need to have a Facebook account.
Second,visit the website,https://www.etsy.com/signin.
Third,Click "Sign in with Facebook" .