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I followed @Mike solution provided at this topic Selenium using Python: enter/provide http proxy password for firefox and it worked great to solve the proxy authentication issue on Chrome through the plugin.

Now I'm facing the same problem with Firefox browser: i'm in Java, using Selenium and i'm trying to create an extension (packing it into .xpi), that would make the same job.

So what i'm doing right now in my code is the following:

    - Taking from pojo's file a pre-written manifest.json and background.js and modifying the script inserting my proxy datas. This is how they appear: 
**manifest.json
{
"version": "1.0.0",
"manifest_version": 2,
"name": "Firefox Proxy | (Proxy Connector)",
"permissions": [
    "proxy",
    "tabs",
    "unlimitedStorage",
    "storage",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
],
"background": {
    "scripts": ["background.js"]
}
}

**background.js
var config = {
    mode: "fixed_servers",
    rules: {
      singleProxy: {
        scheme: "https",
        host: "%proxy_host",
        port: parseInt("%proxy_port")
      },
      bypassList: []
    }
  };

firefox.proxy.settings.set({value: config, scope: "regular"}, function() {});

function callbackFn(details) {
return {
    authCredentials: {
        username: "%username",
        password: "%password"
    }
};
}

firefox.webRequest.onAuthRequired.addListener(
        callbackFn,
        {urls: ["<all_urls>"]},
        ['blocking']
);

- Creating a .zip file but naming it as .xpi I read somewhere that should work, but i'm not too sure

try {
        FileOutputStream fos = new FileOutputStream("./src/temp/plugin.xpi");
        ZipOutputStream zipOS = new ZipOutputStream(fos);

        writeToZipFile(manifestTemp.toString(), zipOS);
        writeToZipFile(scriptModified.toString(), zipOS);

        zipOS.close();
        fos.close();

    } catch (IOException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    }

private void writeToZipFile(String path, ZipOutputStream zipOS) throws IOException {
    File aFile = new File(path); 
    FileInputStream fis = new FileInputStream(aFile); 
    ZipEntry zipEntry = new ZipEntry(aFile.getName()); 
    zipOS.putNextEntry(zipEntry); 
    byte[] bytes = new byte[1024]; 
    int length; 

    while ((length = fis.read(bytes)) >= 0) { 
        zipOS.write(bytes, 0, length); 
        } 

    zipOS.closeEntry(); 
    fis.close();        
}

- Set a Firefox profile, adding the extension and run the webdriver:

File extension = new File("./src/temp/plugin.xpi");

System.setProperty("webdriver.gecko.driver", "./src/WebDriver/geckodriver.exe");
FirefoxProfile profile = new FirefoxProfile();
profile.addExtension(extension);
profile.setPreference("extensions.firebug.onByDefault", true);
profile.setPreference("xpinstall.signatures.required", false);
FirefoxOptions options = new FirefoxOptions();
options.setBinary(new FirefoxBinary()); //don't know if this is correct
options.setProfile(profile);

this.driver = new FirefoxDriver(options);

When I run all this, the following error code appear at driver declaration line:

Exception in thread "AWT-EventQueue-0" org.openqa.selenium.firefox.UnableToCreateProfileException: java.io.FileNotFoundException: ...%user%\AppData\Local\Temp\anonymous1577938325377124354webdriver-profile\extensions\FirefoxProxy|(ProxyConnector)@1.0.0.xpi (The syntax of the file name, directory or volume is incorrect)
Build info: version: '3.141.59'
//geckodriver version '0.24.0'

I also tried to add the extension on Firefox manually in debugging mode so that Firefox doesn't refuse it also if it doesn't have a signature, but it didn't work. It seem that it recognize the plugin but it didn't apply it.

I have doubts about the .xpi format and a file .rdf that I read somewhere should be into the .xpi and that should give instructions about the plugin installation, but i didn't understand much.

Thanks for any support :)

EDIT: I'm not forced to use the plugin by the way, the final result that i want to obtain is an auto proxy authentication made dinamically with different datas and letting the user navigate freely after that. I already searched for a less complex solution but found any.

EDIT2: I solved the problem.. It was not my code, Firefox browser does not accept anymore not signed extensions unless you use a developer Firefox version and set the profile preference xpinstall.signatures.required to false.

Zartof
  • 185
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1 Answers1

0

(The syntax of the file name, directory or volume is incorrect)

I've fixed that by changing the name of the Add-On specified in the manifest.json because ( and | are not allowed for Windows Files.

But I appear to have another Error: Firefox can´t install the Plugin cause it says it´s corrupted. When I debug it in Firefox, it has Problems with

firefox.proxy.settings.set({value: config, scope: "regular"}, function() {});

Because it gets an Reference-Error on firefox, because it was not initialized before. Have you got it working for you?

th0m4zz
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  • I discovered that after version 48 Firefox does not allow to execute any plug-in without a valid signature even if you set the config option `xpinstall.signatures.required = false` https://wiki.mozilla.org/Add-ons/Extension_Signing . So you need to downgrade your version or to run your plug-in on a developer version of Firefox . – Zartof Jul 06 '19 at 15:23
  • I´m running it in the Developer Edition of Firefox – th0m4zz Jul 07 '19 at 15:18
  • Are you adding the plug-in manually or via selenium? If it's via selenium i suggest to search for filepath errors, cause you need to export your script outside the project folder to make it works properly. – Zartof Jul 08 '19 at 11:27
  • I'm on Firefox Nightly 66 and can't use this method. I can load the extension via Python Selenium but proxy is not applied correctly. Similar extension method working in Chrome by the way, but no luck with Firefox :( – Néstor Aug 13 '19 at 10:58