Flash proplem

[Maureen L Thomas]

Hello everyone,
  I have upgraded my firefox esr as it came up on my upgrade list. 
Since then I have lost the flash ability in my browser.  I uninstalled 
flash and reinstalled in.  I am using the nonfree plug in for my debian 
machine.  I am at a complete loss as to what could have happened.  I did 
not do a complete removal of it just the shorter version using synaptic.

  I really need to get it working again but have no idea how.  Oh, I 
also backed out of the upgrade but that didn't solve the problem 
either.  Any help will be gratefully appreciated.
Maureen