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- The View Thumbnails
and View Details 
buttons allow to switch between two viewing modes. The first one shows the attachments and screenshots as thumbnails, the second shows the table with attachments and screenshots details such as Description, File Name, Date, etc. - The Download button allows to download the attachment or screenshot from Bugzilla if it is not downloaded yet.
- The Save A Copy button
allows to save a copy of the screenshot attachment to your disk.