Closed Bug 978818 Opened 6 years ago Closed 6 years ago sends simplified site to Firefox OS


(Web Compatibility :: Mobile, defect)

Gonk (Firefox OS)
Not set


(Not tracked)



(Reporter: gaby2300, Assigned: alex_mayorga, Mentored)




(Whiteboard: [country-ar][serversniff][sitewait])

No description provided. is configured to send some mobile browsers to, but fails to detect Firefox OS devices as smartphones. The Firefox on Android browser is not sent to the mobile site either, so it seems the backend considers every user agent with the word "Firefox" in as a desktop browser.

The HTTP-traffic analysis below shows how Safari on iPhone is redirected to, Firefox OS and Firefox on Android do not get redirected.

Selected HTTP response headers (Firefox OS, then Firefox on Android, then Safari on iPhone):

Response for: 'Mozilla/5.0 (Mobile; rv:18.1) Gecko/18.1 Firefox/18.1'
Response Status: 200
content-type: text/html; charset=utf8

Response for: 'Mozilla/5.0 (Android; Mobile; rv:26.0) Gecko/26.0 Firefox/26.0'
Response Status: 200
content-type: text/html; charset=utf8

Response for: 'Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit
/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25'
Response Status: 302
content-type: text/html; charset=utf8
Whiteboard: [country-ar] → [country-ar][serversniff][contactready][mentor=hsteen]
This bug is now fully analysed and anyone in the Mozilla Argentina community is welcome to reach out (politely! ;)) to 

You can use this letter template or tweet:

and also include this URL:
to give the site's webmaster a quick overview of the bug.

If you contact the site, please assign the bug to yourself and change "[contactready]" to "[sitewait]" in the box named "Whiteboard". 

Thank you!
Tried contacting via twitter, see
Assignee: nobody → alex_mayorga
Whiteboard: [country-ar][serversniff][contactready][mentor=hsteen] → [country-ar][serversniff][sitewait][mentor=hsteen]
Mentor: hsteen
Whiteboard: [country-ar][serversniff][sitewait][mentor=hsteen] → [country-ar][serversniff][sitewait]
They fixed it - congrats, Gaby and Alex :)
Fix verified by automated testing.
Closed: 6 years ago
Resolution: --- → FIXED
Product: Tech Evangelism → Web Compatibility
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