Comment 5 for bug 514932

Or you could configure Thunar's custom actions for this specific problem..... I'm not sure why the XFCE team hasn't integrated this already....

In Thunar: Edit > Configure custom actions

Hit the plus and edit this way:

Title: Restore previous version
Description: Restores earlier file versions via Deja-Dup
Command: deja-dup --restore %F

(Upper-case "%F" is important here, it's for selecting all files and giving their paths to deja-dup)

Edit the icon to the deja-dup icon if you want. Check all the boxes in the "Appearance Conditions" tab except for "Directories"

Hit OK.

To restore missing files from a selected directory, hit the plus again and edit:

Title: Restore missing
Description: Restore missing files from the current directory
Command: deja-dup --restore-missing %f

(lower-case "%f" is important, this is for selecting a single directory as opposed to multiple directories)

Again, edit the icon if you like, and check *only* the "Directories" box under the "Appearance Conditions" tab.

There you go, (mostly) seamless integration with deja-dup, without fuss and without Nautilus, in GUI format.