If Apex Classes and Visualforce Pages have any namespace prefix then while assigning permissions user can see the namespace prefix in the table column.
- Go to the Mass Assign Permission App
- Then Mass Assign Apex Class Permissions tab and select all required fields
- And click on Fetch Apex Class Permission Button
- Then you will get details like the below image.
- On the Mass Assign Visualforce Page Permissions tab -
- Select all fields and click on the Fetch Visualforce Page Permission Button
- Then you will get details like the below image.