Disable the file extension change prompt
In Finder go to the &quot;Finder&quot; menu and select Preferences.
Click on the &quot;Advanced&quot; tab.
Either Check or Uncheck &quot;Show warning before changing an extension&quot; depending on the behavior you want.
Note that it is not possible to change what the default action is (EG press Enter for [respectively] &quot;Remote&quot; , &quot;Don't Add&quot; , &quot;Keep .png&quot;). That is baked in to macOS as a default action. This is always going to be the action that will potentially NOT make a change that could cause a potential issue.