Browsing English (Australia) translation

note: 'Extensions tag in the feedback details of the Reset Profile Settings dialog'
note: 'Extensions, one of the data types that we allow syncing.'
note: 'Label for the checkbox which enables or disables syncing extensions between multiple browser instances.'
note: 'The Mac menu item to show extensions in the window menu.'
note: 'The accessible name for the Extensions toolbar.'
in: results/cr/chrome/app/generated_resources.grd, as IDS_CERT_DETAILS_EXTENSIONS
in: results/cr/chrome/app/generated_resources.grd, as IDS_ACCNAME_EXTENSIONS