# Install extension

**URL:** <https://discourse.slicer.org/t/install-extension/21547>\
**Category:** Support\
**Tags:** extensions-manager, bug\
**Created:** [January 20, 2022, 2:50pm UTC](https://discourse.slicer.org/t/install-extension/21547 "2022-01-20T14:50:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Linhsia\_Noferini](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/linhsia_noferini/32/13903_2.png) [@Linhsia\_Noferini](https://discourse.slicer.org/u/Linhsia_Noferini)\
**Post date:** [January 20, 2022, 2:50pm UTC](https://discourse.slicer.org/t/install-extension/21547/1 "2022-01-20T14:50:42Z")

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Problem report for Slicer 4.13.0-2022-01-19 win-amd64: [please describe expected and actual behavior]  
Hy,  
when I open the install extensions tab, the slider at the bottom says 100% but the page appears white, I cannot see any extension. I tryed with different connections to the internet and different 3D slicer version (11 and 13) but I always got the same result. could you help me?

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**Author:** ![Yarden](https://avatars.discourse-cdn.com/v4/letter/y/f6c823/32.png) [@Yarden](https://discourse.slicer.org/u/Yarden)\
**Post date:** [March 16, 2022, 11:46am UTC](https://discourse.slicer.org/t/install-extension/21547/2 "2022-03-16T11:46:03Z")

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Have the same problem.  
Did you find a solution?

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**Author:** ![Linhsia\_Noferini](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/linhsia_noferini/32/13903_2.png) [@Linhsia\_Noferini](https://discourse.slicer.org/u/Linhsia_Noferini)\
**Post date:** [March 18, 2022, 9:22am UTC](https://discourse.slicer.org/t/install-extension/21547/3 "2022-03-18T09:22:26Z")

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Hy,

not yet. I think it depends on my PC security settings that prevent access to some internet web pages.  
I am behind a work network controlled by system administrators with very strict rules…