# Extensions in macbook does not work

**URL:** <https://discourse.slicer.org/t/extensions-in-macbook-does-not-work/33001>\
**Category:** Support\
**Created:** [November 24, 2023, 7:58am UTC](https://discourse.slicer.org/t/extensions-in-macbook-does-not-work/33001 "2023-11-24T07:58:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lilyana](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lilyana/32/68412_2.png) [@Lilyana](https://discourse.slicer.org/u/Lilyana)\
**Post date:** [November 24, 2023, 7:58am UTC](https://discourse.slicer.org/t/extensions-in-macbook-does-not-work/33001/1 "2023-11-24T07:58:55Z")

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i cannot install extensions in macbook. 3D Slicer version 5.4.0

 ![7BC4684C-190C-4825-B319-08022710B4EC](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/f/fffc83b42c6db8c2b919841d2361a19646ba7456.jpeg)

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [November 24, 2023, 2:19pm UTC](https://discourse.slicer.org/t/extensions-in-macbook-does-not-work/33001/2 "2023-11-24T14:19:45Z")

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Be sure to put the application in a directory where you are able to save data (when you run the application from the downloaded disk image you can’t save any data into that disk image - drag the application out). That is what the displayed message says, but maybe it’s not obvious enough.