Clarification on Browser Tracking Limitations for Android Firefox in Mixpanel

·Jan 29, 2026 06:11 AM·

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Hi everyone, We’d like to clarify a browser tracking behavior we observed on Android devices. For the same user on an Android phone:

When opening our website with Chrome, Mixpanel is able to correctly detect the browser as Chrome.
However, when opening the website with Firefox, the browser is recorded as “Android Mobile”, and the browser version is shown as “(not set)”, instead of Firefox.

Based on this comparison, we’d like to confirm:

1.
Is this behavior a known tracking limitation on Mixpanel’s side, or
2.
Is it a platform or browser-specific limitation on Android / Firefox that affects browser detection?

Additionally, could you help clarify whether Mixpanel has any known browser detection limitations, such as specific browsers or environments where the browser name cannot be reliably identified? Thanks in advance for your clarification and guidance.

🎫1

3 comments

· Sorted by Oldest

Mixpanel Community
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This post is now synced! Check it out here: _Clarification on Browser Tracking Limitations for Android Firefox in Mixpanel_ ⤵️ Any future comments will be automatically posted to the thread
Julianne Bozzini
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Hi Emily- Julianne from Mixpanel Support here! I can replicate the behavior you're seeing with the Firefox browser on Android. This seems like a bug on our end, and I've gone ahead and reported it to the engineering team. Thank you for flagging this. In terms of the browser detection limitations, the JavaScript SDK relies on the User Agent to detect and classify browsers. Chrome-based browsers often don’t expose their actual browser branding in the standard User Agent string. If your use case requires more granular details about the browser brand, you can track this in your implementation by using navigator.userAgentData and setting it as a super property.
Emily W.
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thanks for your assistance, and i have referred this info to our team✌️
🙌1

Mixpanel Community
APP
·
·
This post is now synced! Check it out here: _Clarification on Browser Tracking Limitations for Android Firefox in Mixpanel_ ⤵️ Any future comments will be automatically posted to the thread
Julianne Bozzini
APP
·
·
Hi Emily- Julianne from Mixpanel Support here! I can replicate the behavior you're seeing with the Firefox browser on Android. This seems like a bug on our end, and I've gone ahead and reported it to the engineering team. Thank you for flagging this. In terms of the browser detection limitations, the JavaScript SDK relies on the User Agent to detect and classify browsers. Chrome-based browsers often don’t expose their actual browser branding in the standard User Agent string. If your use case requires more granular details about the browser brand, you can track this in your implementation by using navigator.userAgentData and setting it as a super property.
Emily W.
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·
thanks for your assistance, and i have referred this info to our team✌️
🙌1