I use my browser to save this password. Safari has mysteriously deleted ALL SAVED passwords. Now what?
Follow the FileMaker documentation for it:
What to do if FileMaker Server Admin Console password is lost or forgotten | FileMaker
I'd suggest a password vault like LastPass instead of relying on browser storage which can easily be wiped out.
Using Safari suggests that at least one Mac is being used. Have you looked in your Keychain Access app? It might also have the password saved.
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