Title: Backend: Set thumbnail link not functioning!
Last modified: August 19, 2016

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# Backend: Set thumbnail link not functioning!

 *  Resolved [sirtimo](https://wordpress.org/support/users/sirtimo/)
 * (@sirtimo)
 * [15 years, 8 months ago](https://wordpress.org/support/topic/backend-set-thumbnail-link-not-functioning/)
 * I had to work on an old wordpress installation, running 2.9.1 i guess, and i 
   wanted to add the featured image/ post thumbnail feature.
 * So i added the code to the functions.php; and now the postthumbnail metabox nicely
   appears. With te ‘set thumbnail’ link.
 * Only, upon clicking on that link, nothing happens! While the mediabrowser should
   popup.
 * if i check where the link leads to. it leads to this:
    [http://villebois.nl/wp-admin/post.php?action=edit&post=642#](http://villebois.nl/wp-admin/post.php?action=edit&post=642#)
 * checking the source of the page, i see this:
    `<a href="#" id="set-post-thumbnail"
   onclick="jQuery('#add_image').click();return false;">Set thumbnail</a>`
 * What could be wrong? I want my popup!

The topic ‘Backend: Set thumbnail link not functioning!’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [sirtimo](https://wordpress.org/support/users/sirtimo/)
 * Last activity: [15 years, 8 months ago](https://wordpress.org/support/topic/backend-set-thumbnail-link-not-functioning/)
 * Status: resolved

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