I am trying to install Flash Player vers 32 on my MacBook, operating system Mac OS Mojave, vers 10.14.3, using Safari vers 12.0.3.
After adding password to "add helper" tool box, system appears to complete installation of Flash player 32. When I click "done"- it goes back to "helper tool" box and wants the password again. I have tried closing the browser before clicking "done", still goes back to helper tool box. This has repeated many times.
This password prompt is presented by your operating system, and is intended to keep you from accidentally installing software.
If this is your personal machine and you don't need a password to log into the computer when it first starts up, you can probably leave the password blank and click OK to get past this prompt. If this is your personal machine and your normal password isn't working, check to make sure that CAPS LOCK is off, and type the password carefully.
If this is your work machine and it's asking for an Administrator password, well, you'll need to have a conversation with your friendly IT person.
If you're still stumped, you may need to reset the password on your Mac: