add open graph tags on the fields

hello how can I add open graph tags on the fields so that they are taken into account by facebook? Thank you

You'd need CB Auto Actions to insert custom metadata on profile pages or some other extension that lets you do this.

Thank you for your reply.
Is there a little tutorial to say that this or that image matches og: image?

I would like a meta og: image field that fills with the image url of the "avatar" field
thank you in advance

CB Auto Actions doesn't hardcode in the metadata so you can supply whatever you like for header output. The below for example will add og:image.

Global
Triggers: onAfterUserProfileDisplay
Type: Code
User: Automatic
Access: Everybody
Action
Method: Header
Code:
That should add og:image using their avatar image as the output to users profiles.

Thank you but when I want to test on your demo version I have this message as soon as I enter "code"
Forbidden
You don't have permission to access this resource.
And then when I go to "action"
I do not have
Method: Header
and
Coded:

We don't allow testing Code or Query usages on our demo site for security purposes, sorry.