Not able to launch Firefox browser on android emulator

We are planning to automate tests on mobile Firefox browser but not sure that what we are missing here Here is the code:
UiAutomator2Options androidOptions = new UiAutomator2Options()

                Map<String, Object> geckoOptions = new HashMap<>();
                geckoOptions.put("androidPackage", "org.mozilla.firefox");
                geckoOptions.put("androidDeviceSerial", deviceName);

                androidOptions.setCapability("moz:firefoxOptions", geckoOptions);

                FirefoxOptions firefoxOptions = new FirefoxOptions();

androidOptions.setCapability(FirefoxOptions.FIREFOX_OPTIONS, firefoxOptions);
driver = new AndroidDriver(url, androidOptions);

Other details: OS --> Mac , android emulator,
can you please someone look and share the solution?

As mentioned in the gecko support , use platformName as Mac instead of android but when I use Mac then Firefox browser opens in my local machine instead of on mobile


Just changed few capabilities but this time different error
“alwaysMatch”: {
[GeckoDriver@33cf] “browserName”: “Firefox”,
[GeckoDriver@33cf] “platformName”: “mac”,
[GeckoDriver@33cf] “moz:firefoxOptions”: {
[GeckoDriver@33cf] “androidDeviceSerial”: “emulator-5554”,
[GeckoDriver@33cf] “androidPackage”: “org.mozilla.firefox”
[GeckoDriver@33cf] },
[GeckoDriver@33cf] “appium:automationName”: “Gecko”
[GeckoDriver@33cf] },
[GeckoDriver@33cf] “firstMatch”: [
[GeckoDriver@33cf] {}
[GeckoDriver@33cf] ]
Session created with session id: f3dcbfcd-bc8b-4948-8edb-be2821a34350
[GeckoDriver@33cf (f3dcbfcd)] Starting ‘/opt/homebrew/bin/geckodriver’ with args ["-p",“5200”]
[GeckoDriver@33cf (f3dcbfcd)] Matched ‘/status’ to command name ‘getStatus’
[GeckoDriver@33cf (f3dcbfcd)] Proxying [GET /status] to [GET] with no body
[GeckoDriver@33cf (f3dcbfcd)] connect ECONNREFUSED
[GeckoDriver@33cf (f3dcbfcd)] [geckodriver] 1706368381571 geckodriver INFO Listening on
[GeckoDriver@33cf (f3dcbfcd)] Matched ‘/status’ to command name ‘getStatus’
[GeckoDriver@33cf (f3dcbfcd)] Proxying [GET /status] to [GET] with no body
[GeckoDriver@33cf (f3dcbfcd)] Got response with status 200: {“value”:{“message”:"",“ready”:true}}
[GeckoDriver@33cf (f3dcbfcd)] Matched ‘/session’ to command name ‘createSession’
[GeckoDriver@33cf (f3dcbfcd)] Proxying [POST /session] to [POST] with body: {“capabilities”:{“firstMatch”:[{}],“alwaysMatch”:{“browserName”:“firefox”,“platformName”:“mac”,“moz:firefoxOptions”:{“androidDeviceSerial”:“emulator-5554”,“androidPackage”:“org.mozilla.firefox”}}}}
[GeckoDriver@33cf (f3dcbfcd)] [geckodriver] 1706368382668 mozdevice INFO Device is unrooted
[GeckoDriver@33cf (f3dcbfcd)] Got response with status 500: {“value”:{“error”:“unknown error”,“message”:“adb error: fchown failed: Operation not permitted”,“stacktrace”:""}}
[W3C] Matched W3C error code ‘unknown error’ to UnknownError
[GeckoDriver@33cf (f3dcbfcd)] Ending Gecko Driver session

can you please correct me if I missed something

It is an issue with marionette itself:

Is there any alternative solution to run test son Firefox mobile browser?