Updated September 2026: Facebook’s Like button for external websites was discontinued on 10 February 2026. The old installation steps from this article no longer work.
This page originally explained how to add the button to a Tumblr theme in 2010, with an update in May 2012. I’ve removed the obsolete installation code so it isn’t mistaken for a working tutorial.
What to use instead
To let readers share an article on Facebook, use your blog platform’s sharing options or consult Meta’s current Share Button documentation. Sharing a link does not restore the retired Like button or its count.
If your theme still includes the old Like-button code, you can remove it. Meta says the retired plugins become invisible and recommends removing their code for a cleaner page. See its current Social Plugins documentation and retirement FAQ.