genkisan

<ul>
<li>easily switch on and off through Admin Options</li>
<li>display message without editing theme files (above 1st post or through widget)</li>
<li>display different message to different roles/users</li>
</ul>
Demo: 
<a href="http://ericulous.com/2007/03/09/genki_announcement/" rel="nofollow ugc">Plugin Details & Demo</a>

Genki Announcement

Md Abul Bashar

Just Allow Media files Upload access for Contributor users role.
Just Install then it’s worked. don’t need any more step. If you want then you can see documentations with screenshot <a href="http://www.codingbank.com/contributor-media-files-upload-access-wordpress-plugin" rel="nofollow ugc">Contributor Media Files Upload Access</a>

Contributor Media Files Upload Access

Just Allow Media files Upload access for Contributor users role.

Genki Announcement vs Contributor Media Files Upload Access