Are you still looking for the location of the town of Majorville or Majorfield?
This is the town of Maugerville, which also is in the parish of Maugerville, Sunbury Co., New Brunswick. This name is pronounced majorville.
If you go to google and type in "Sunbury County, New Brunswick Wikipedia" it will list all the parishes and towns for Sunbury County and also has a map of the counties. You can do the same for other counties, though not all towns are listed by parish (ex. in Province of Nova Scotia). It is very helpful to go by the county, parish and towns at the Wikipedia site.
In the 1700s (to late 1800s censuses and many other documents, etc.) they are most likely referring to the Parish of Maugerville, rather than the town of Maugerville.
Since your msg is old, you have likely found what you are looking for by now.