How do I enable users to have a browse button (by clicking on the image icon)so that they can upload a picture. I added a user to my website and I gave him the permission to use blocks.
I activated wysiwyg and TinyMCE so that he can add also images.

But he has a problem, when he clicks on the icon to add an image then it opens a window where u can add the image url, image description,... but there is no browse button so that u can upload a picture.

thank in advance!
You need a  combination of the imce module and imce bridge module to do this 

IMCE


  IMCE is an image/file uploader and browser that supports personal
  directories and quota.


IMCE BRIDGE


  Allows to use IMCE module with Wysiwyg module.