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When I change a file extension in Finder.app, I get prompted for confirmation.

How can I disable all of these? I never want to confirm the change.

Are you sure you want to remove the extension ".png"?

Are you sure you want to remove the extension ".png"?
If you make this change, your document may open in a different application.

Are you sure you want to add the extension ".png" to the end of the name?

Are you sure you want to add the extension ".png" to the end of the name?
If you make this change, your document may open in a different application.

Are you sure you want to change the extension from ".png" to ".jpg"?

Are you sure you want to change the extension from ".png" to ".jpg"?
If you make this change, your document may open in a different application.

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1 Answer 1

Reset to default
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In Finder go to the "Finder" menu and select Preferences. Click on the "Advanced" tab. Either Check or Uncheck "Show warning before changing an extension" depending on the behavior you want.

Finder > Preferences > Advanced > Show warning before changing an extension

Note that it is not possible to change what the default action is (EG press Enter for [respectively] "Remote" , "Don't Add" , "Keep .png"). 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.

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