I can remember reading an article about 10 years ago which was about SAS operations in the northern regions of Scandinavia. Because of the problems with braking on snowy or icy runway SAS had some of their DC-9s fitted with braking-chutes for use on these routes ... I would expect that they would fitted as-and-when the conditions required, and removed during the summer periods.
Are their any current 'airliner' types which are currently/regularly fitted with 'chutes?