Having tried much of the above, I have found that an effective way is to duplicate wp-admin/edit-comments.php
Rename your comments administration file to something that will enable you to access it.
Create a new wp-admin/edit-comments.php file with this content
<BODY onLoad="history.go(-1);;return false">
Your contributors will not see the comments, but will effectively stay where they were.
I edit my comments by opening the ‘Comments’ in a new tab and replacing the wp-admin/edit-comments.php with the working URL (e.g. wp-admin/edit-comment2.php)
