This add-on has saved me a tremendous about of time.
Not Free.
But similar ones are but not written specifically for Genealogy sites
ORA
Online Repository Assistant
This add-on to your web browser is very helpful.
Pulls data from most used genealogy sites.
Automatically populate you data fields. 1 mouse click.
Customizable to any site.
No. Free or paid doesn’t matter. Under you what you see in your browser is under written code that it exacts the data from.
Here is some of them
American Ancestors, Ancestry, Australian Cemeteries Index, BillionGraves,
FamilySearch, Find a Grave, Findmypast, Fold3, FreeReg, General Register Office, UK
JewishGen, Newspapers.com, Nova Scotia Genealogy, TheGenealogist, Trove.
Some use it with excel.
for more sites
See Repositories and Generic Service
Even it you don’t use the fill in feature it still reduces the copy and past time to 1 button clicks to copy info.