The FamilySearch site has added more records to their Nova Scotia Probate Records (1760-1993).
This site includes “records of probate proceedings from Nova Scotia. The records include estate files, inventories, wills, administrations and other records related to probate. Most of the records are dated from 1800-1940, but coverage varies by area.”
They have the counties of Annapolis, Antigonish, Barrington District, Cape Breton, Colchester, Cumberland, Guysborough District, Hants, and Inverness.
You can search the records at https://familysearch.org/search/image/index#uri=https://familysearch.org/recapi/sord/collection/2134302/waypoints
I just briefly looked at the records on the Barrington Distract area since I have family there (the descendants of Henry Blades), and found that the records are of faint quality, but with patience and years of reading these type of records, I was able to pick out probates of interest.
So give it a try. Remember that they are not indexed, so you will have to skim through them until you find the desired record.