Web-bugs: mail.yahoo.com - Firefox Nightly is unsupported

[webcompat-bot]

URL: https://mail.yahoo.com/

Browser / Version: Firefox Mobile 68.11.0
Operating System: Android 9
Tested Another Browser: Yes Chrome

Problem type: Desktop site instead of mobile site
Description: Desktop site instead of mobile site
Steps to Reproduce:
The site shows a message that the browser aren't compatible with the new resources of yahoo mail and offers a little version with less resources that is like a desktop version.

Browser Configuration

• None

_From webcompat.com with ❤️_

[cipriansv]

Thanks for the report.

I was indeed able to reproduce the issue. I am not able to use the mail section in Firefox Nightly.

Tested with:
Browser / Version: Firefox Nightly 200811(🦎 81.0a1-20200808213325), Chrome Mobile [phone]
Operating System: OnePlus6 (Android 10) - 1080 x 2280 pixels (~402 ppi pixel density)

This is the web page displayed in Firefox Nightly after I access the mail section from Yahoo homepage:

And this is the web page displayed in Chrome:

Moving the issue to needsdiagnosis.

[ksy36]

This is based on UA detection. Lets contact yahoo to see if there is a reason for not supporting Firefox on Android

[ksy36]

Looks like @yahoo is on github. Maybe @gyehuda could help us with this issue. Hi Gil, we're wondering what could be a reason for not supporting mobile Firefox here. Would you be able to pass this along to the relevant person or team?

We're also getting a lot of reports about another problem https://github.com/webcompat/web-bugs/issues/56519, where a desktop version is returned for Firefox users on mobile. It affects main yahoo site and its subdomains. Wonder if these two issues are related.

[gyehuda]

Thank for looping me in. Let me see if I can get the right people on this.

[ksy36]

Thanks @gyehuda!

[gyehuda]

A fix has been put into production today. It should address this issue as well as a related issue #56519. We noticed one other site that is still not displaying the mobile site (but I didn't see it noted here), and the team is addressing it. Thanks for letting me know about this issue and I hope the fix get confirmed with your subsequent testing.

[ksy36]

This is now working for me, don't get the unsupported message anymore. Appreciate you help @gyehuda 👍