- In the left panel of your TYPO3 backend, select Admin Tools > Extensions
- At the top selector box select Get Extensions and click Update now on the right.
- Search for "Disqus" and find the plugin named "DISQUS Comments Extbase" with the Extension key disqus_comments_extbase.
- Click Import & Install on the left.
- After finishing, select Admin Tools > Extensions again.
- Search for "Disqus" and click on the gear icon to configure the Extension.
- Enter your Disqus shortname in the box provided and save.
- After installation create a content element of type "Plugin" on the page of your choice and select "DisqusCommentBox".