# Growing number of users with "Unknown" version in Statistics page

**URL:** <https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067>\
**Category:** addons.mozilla.org\
**Created:** [January 16, 2025, 6:10pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067 "2025-01-16T18:10:51Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![juraj.masiar](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/juraj.masiar/32/30587_2.png) [@juraj.masiar](https://discourse.mozilla.org/u/juraj.masiar)\
**Post date:** [January 16, 2025, 6:10pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/1 "2025-01-16T18:10:51Z")

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Number of users of my [addon](https://addons.mozilla.org/addon/groupspeeddial/) doesn’t really change over the years in Firefox, but I can see since ~12th of December 2023, the number of “Unknown” users is growing:

 ![image](https://us1.discourse-cdn.com/flex001/uploads/mozilla/original/3X/3/a/3a1c58222b91e0e6bd3e027e7c4c50048fd12d2f.png)

What are those?  
Currently they make only 1.8% of all users, but this percentage is growing steadily.

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**Author:** ![dotproto](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/dotproto/32/62957_2.png) [@dotproto](https://discourse.mozilla.org/u/dotproto)\
**Post date:** [January 22, 2025, 11:07pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/2 "2025-01-22T23:07:33Z")

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Curious. I’ll reach out to the engineering team and see if they have any idea what’s causing this.

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**Author:** ![dotproto](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/dotproto/32/62957_2.png) [@dotproto](https://discourse.mozilla.org/u/dotproto)\
**Post date:** [January 28, 2025, 6:01pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/3 "2025-01-28T18:01:49Z")

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Looks like we’re not 100% sure what’s causing this and will need to investigate.

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**Author:** ![dotproto](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/dotproto/32/62957_2.png) [@dotproto](https://discourse.mozilla.org/u/dotproto)\
**Post date:** [January 28, 2025, 8:46pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/4 "2025-01-28T20:46:21Z")

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Looks like the main source of “unknown” versions is Firefox for Android.

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**Author:** ![juraj.masiar](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/juraj.masiar/32/30587_2.png) [@juraj.masiar](https://discourse.mozilla.org/u/juraj.masiar)\
**Post date:** [January 28, 2025, 8:54pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/5 "2025-01-28T20:54:00Z")

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Thanks!  
That explains the December 14th when this happened:

> **[A new world of open extensions on Firefox for Android has arrived – Mozilla...](https://blog.mozilla.org/addons/2023/12/14/a-new-world-of-open-extensions-on-firefox-for-android-has-arrived/)**
>
> Woo-hoo you did it! Hundreds of add-on developers heeded the call to make their desktop extensions compatible for today’s debut of a new open ecosystem of Firefox for Android extensions. ...

In any case, someone should probably fix or at least report that, right? 🙂

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**Author:** ![dotproto](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/dotproto/32/62957_2.png) [@dotproto](https://discourse.mozilla.org/u/dotproto)\
**Post date:** [January 28, 2025, 9:14pm UTC](https://discourse.mozilla.org/t/growing-number-of-users-with-unknown-version-in-statistics-page/139067/6 "2025-01-28T21:14:52Z")

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I don’t know if it has been reported on [Bugzilla](https://bugzilla.mozilla.org/) or the [addons repo](https://github.com/mozilla/addons/issues), but if you find/create an issue I’d be happy to pass it along to the right folks 😃