How to download your Facebook profile to view offline
(1) First goto account settings
(2) Then press 'learn more' on the 'Download Your Information' (the one before last)
(3) Then after about a day you will receive an email like this. It means its ready. Open it and click the link.
(4) After press the Download Now button, it will start downloading as a .zip file. It contains all your photos, comments, wall posts, status updates, everything.