Capabilities not passed to Firefox Webdriver in Selenium 4 in Java

[Joanna]

Hi everyone, 

I am trying to upgrade selenium from version 3 to version 4, but the Firefox webdriver capabilities seems to not be passed to the driver. 

The biggest issue is that pdfjs.disable option is not passed. 

The language is Java, I am using Selenium 4.12.0, firefox version is 116.

Firefox ffop = new FirefoxOptions();
ffop.addPreference("browser.helperApps.neverAsk.saveToDisk", "application/pdf");
ffop.addPreference("pdfjs.disabled", true);
ffop.addPreference("browser.download.panel.shown", false);
ffop.addPreference("useAutomationExtension", false);
ffop.addPreference( "plugins.always_open_pdf_externally", false);
ffop.addPreference("pdfjs.firstRun", false);
ffop.addPreference("plugin.disable_full_page_plugin_for_types", "application/pdf,application/vnd.adobe.xfdf,application/vnd.fdf,application/vnd.adobe.xdp+xml");
ffop.addPreference("plugin.scan.Acrobat", "99.0");
ffop.addPreference("plugin.scan.plid.all", false);

I am passing the options as this:

FirefoxOptions firefoxOptions = new FirefoxOptions();
static Map<String, Object> capabilities = new HashMap<>();
capabilities.put("moz:firefoxOptions", ffop);

firefoxOptions.setCapability("cloud:options",capabilities);
firefoxOptions.setCapability("selenoid:options", selenoidOptions);

remoteWebDriver = new RemoteWebDriver(url, firefoxOptions);

Thank you

[Ricardo Alfredo Pavez Catrileo]

What I would do is check if the geckodriver driver starts locally first, you can validate it through postman with the JSON Wire Protocol function and if the driver communicates with the version of your browser you already have one less problem and the problem is not in the communication of these components...