MarketMover
Which books are logged in. Log in on each book's own site. Betfair and Dabble, which have no site login the extension can read, are typed here once and never kept.
Bets are placed here with your limits; logins never leave this device. Only a key you enter here can place; you can turn it off at any time.
This unpacked build only. While on, a book's own betslip calls are recorded in this browser as you bet on its site: bodies only, never a header, cookie or token; your details, account and bet numbers and balance are masked. Place the bet yourself, then save the file.