Incorrect popup message
My wife keeps getting a popup message, "Can't update Firefox to the latest version. Download a fresh copy and we'll help you install it." But she has the latest version, she has automatic updates, and when she downloads and installs it manually, it's the same version as before, and she keeps getting the popup message.
She has MacBook Pro, 13" using the Mojave OS Version 10.14.6, Firefox version 77.0.1 (64-bit).
Opaite Mbohovái (1)
Firefox always shows "Update Ready to Install" :MAC Only
SOLUTION: Remove
/Users/==<UserName>==/Library/Caches/Mozilla/
which contained the directory
/updates/Applications/Firefox/updates/
/Users/$u/Library/Caches/Mozilla/