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RBehymer
User level: Level 1 (23 points)

Double-clicking filename in Finder selects extension in macOS 27

Perhaps this isn't the right place since I consider this a bug added with today's release of MacOS 27. Double-clicking a filename in the Finder responds differently in MacOS 27. Previously, if I double-clicked the last word before the period and extension, only the last word would be selected. In MacOS 27, the same action now selects the last word, the period and the extension. Since I perform this action multiple times each day to rename a duplicate of a file, this gets annoying quickly and eats up more of my time. https://youtu.be/AkQ6syMWgkY

Posted on Sep 15, 2026 11:41 AM

3 replies

neuroanatomist
User level: Level 9 (72,871 points)

Sep 15, 2026 12:00 PM in response to RBehymer

I can replicate this behavior. On my Mac still running Tahoe, double-clicking the last word selects that word. On my Mac running Golden Gate, that also select the extension (if shown).


Tahoe:


Golden Gate:


A possible workaround is to hide the extension, in that case only the last word is selected. Select a file then File menu > Get Info and check the box.



Note that you can select multiple items to apply that change – select them, then hold the Option key and press Command-I or File menu > Show Inspector, then tick the box (there's a – in the one below because some of the files I selected have the extension hidden already, ticking the box will hide them all).



Regarding the change with Golden Gate, to have Apple consider your feedback, submit it here:

Feedback - macOS - Apple

 

HWTech
User level: Level 9 (78,350 points)

Sep 15, 2026 2:03 PM in response to RBehymer

How about once you enter the mode to edit the file name....while the main part of the name is highlighted, press the right arrow key to move the cursor instantly to the end of the name. You can use the left arrow key and hold the Shift key to highlight the text you wish to edit. Even if the file extension is highlighted, pressing the left arrow four times is fairly quick. This is the method I use....never realized about the double-click to highlight just a "word".


Unfortunately Apple's defaults are to hide file extensions and I think Apple only tests macOS these days with the default options configured....I see so many bugs when settings are customized using allowed options through the GUI.


Maybe if enough people provide feedback, it will get Apple's attention.

Janscarrr
User level: Level 1 (8 points)

Sep 22, 2026 9:07 PM in response to RBehymer

Currently running into the same problem, and the workaround to hide the extension isn't efficient enough if you're working with files every day. Also, the global setting to hide all file name extensions doesn't work either. I hope this is just a bug and would be fixed soon.

Originally posted at discussions.apple.com/thread/256357484