# Beta testing request — MixStūra Video Downloader

**URL:** <https://discourse.mozilla.org/t/beta-testing-request-mixstura-video-downloader/149345>\
**Category:** Add-ons\
**Created:** [September 2, 2026, 3:04pm UTC](https://discourse.mozilla.org/t/beta-testing-request-mixstura-video-downloader/149345 "2026-09-02T15:04:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mixstura](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/mixstura/32/78426_2.png) [@mixstura](https://discourse.mozilla.org/u/mixstura)\
**Post date:** [September 2, 2026, 3:04pm UTC](https://discourse.mozilla.org/t/beta-testing-request-mixstura-video-downloader/149345/1 "2026-09-02T15:04:37Z")

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Hey! 👋

I’m developing **MixStūra** , a browser extension for downloading videos, and I’m looking for Firefox users and developers who are willing to put it through some real-world testing.

I’d really appreciate it if you could try it on different websites 😄

I’m especially interested in:

- websites where video detection doesn’t work
- failed or incomplete downloads
- incorrect video/quality detection
- weird behavior or UI issues
- Firefox-specific problems
- anything that behaves differently than expected

**MixStūra:** [[link](https://addons.mozilla.org/en-US/firefox/addon/mixst%C5%ABra-video-downloader/)]

It’s currently in beta, so real-world testing on different websites would be extremely useful.

The harder you kick it, the better. 😄

Thanks!

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**Author:** ![hans\_squared](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/hans_squared/32/67424_2.png) [@hans\_squared](https://discourse.mozilla.org/u/hans_squared)\
**Post date:** [September 2, 2026, 3:33pm UTC](https://discourse.mozilla.org/t/beta-testing-request-mixstura-video-downloader/149345/2 "2026-09-02T15:33:34Z")

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1. Did you use AI to make your extension?  
(Why am I asking? Because there’s a huge influx of new extensions, and that’s probably because of AI. See [Important update: Addressing the long manual review times](https://discourse.mozilla.org/t/important-update-addressing-the-long-manual-review-times/148498) )
2. Are you the same developer who made [[Feedback] VoxSub – a Firefox add-on for dual subtitles, AI translation, and subtitle control](https://discourse.mozilla.org/t/feedback-voxsub-a-firefox-add-on-for-dual-subtitles-ai-translation-and-subtitle-control/148583) ?  
Both extensions are for videos, and the [MixStura website](https://mixsturaapp.github.io/MixSturaApp/) and the [VoxSub website](https://voxsub.netlify.app/) look similar.  
(But maybe that’s just how websites look these days…)

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**Author:** ![mixstura](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/mixstura/32/78426_2.png) [@mixstura](https://discourse.mozilla.org/u/mixstura)\
**Post date:** [September 2, 2026, 11:57pm UTC](https://discourse.mozilla.org/t/beta-testing-request-mixstura-video-downloader/149345/3 "2026-09-02T23:57:53Z")

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Hi Hans, thanks for stopping by

Regarding AI: yes, I use AI tools during development, but mainly for specific engineering tasks — generating and running tests, documentation, code review, helping with large-scale refactoring, automating routine tasks, and checking builds for compliance with Firefox/WebExtension requirements. After all, I’m just one person, not an entire team.

The architecture, implementation decisions, changes, and final review are all done by me.

As for VoxSub — no, that is not my extension. I’m not the developer behind it. We’re simply two different people.

Thanks for your attention!