# Compatilbe add-on mark as uncompatible?

**URL:** <https://discourse.mozilla.org/t/compatilbe-add-on-mark-as-uncompatible/75251>\
**Category:** addons.mozilla.org\
**Created:** [February 9, 2021, 11:16am UTC](https://discourse.mozilla.org/t/compatilbe-add-on-mark-as-uncompatible/75251 "2021-02-09T11:16:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sizvix](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/sizvix/32/4119_2.png) [@sizvix](https://discourse.mozilla.org/u/sizvix)\
**Post date:** [February 9, 2021, 11:16am UTC](https://discourse.mozilla.org/t/compatilbe-add-on-mark-as-uncompatible/75251/1 "2021-02-09T11:16:06Z")

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Hello  
I made an add-on there is 2 years ago, very simple but usefful for me.

> **[HideIt – Adoptez cette extension pour 🦊 Firefox (fr)](https://addons.mozilla.org/fr/firefox/addon/hideit/)**
>
> Télécharger HideIt pour Firefox. Extention to hide elements on a webpage

But it’s indicate uncompatible on a friend’s Firefox … He use windows , but I don’t indicate uncompatible to windows :-/

 ![image](https://us1.discourse-cdn.com/flex001/uploads/mozilla/original/3X/a/b/abf2837a8e2ed00e676b082d6217c0d86f3d0c22.png)