1810175 - Network Service Discovery not supported

Status: NEW

(Firefox for Android :: Browser Engine, defect)

Description

[Christian Sadilek [:csadilek]]

From github: https://github.com/mozilla-mobile/fenix/issues/16835.

Steps to reproduce

On a LAN, fire up a linux machine with avahi-daemon (or equivalent mdns program).

On firefox, try to visit machine-name.local:port

Expected behavior

We're able to connect to machine-name.local:port

Actual behavior

"Unable to connect" error message

Device information

• Android device: Pie
• Fenix version: 80.0.1-beta.2

---

Please note that while searching for mDNS support on android in general, I found a few articles from several years ago saying it's not supported by the OS, but I found a claim about support being available in Android API 16 and up via "Network Service Discovery" library.

┆Issue is synchronized with this Jira Task

Change performed by the Move to Bugzilla add-on.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:cpeterson, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 2

[jackyzy823]

I tested on my own device (Pixel 6 with Android 14) , mDNS is working.

Doc: https://source.android.com/docs/core/ota/modular-system/dns-resolver#mdns-local-resolution

Something you should pay attention to:

Starting from November 2021, Android resolver supports mDNS .local resolution

VPN and mobile data connections are excluded from .local resolution.