Featured image issue - Sydney

How do i choose a featured image that will appear as a thumbnail when i link my website to sites like facebook.

like this for example
that default image appeared
but i changed that to something else and that image still appeared when i linked my page to my post
Thanks =)

Hello there,

You can use the YOAST SEO plugin. See this article which explains how to do it (go to “Explicitly Tell Facebook To Use Thumbnail of Your Choice” section).

Regards,
Kharis