How to make it work?

I installed the module but it doesn't seem to be working, the contextual menu still appears (for example, when I write a word and select it, the Ckeditor contextual menu still appears when I right click on my text). I checked the readme file, which doesn't precise any particular configuration required settings. Am I missing something?

I'm using Drupal 7.98, Wysiwyg 7.x-2.9 with CKeditor 4.9.2.95e5d83