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Firefox Profile for Selenium WebdriverJS, admc/wd or any other library that allows you to set capabilities.

This class allows you to:

  • create a firefox profile
  • use an existing profile (by specifying a path)
  • use an existing user profile (by specifying a name)
  • add extensions to your profile,
  • specify proxy settings,
  • set the user preferences…

More info on user preferences here.

It also contains a command line interface that allows to copy or create profiles.


“real” npm support is on its way… soon… maybe… Open an issue if you need it… Use npm:

npm install firefox-profile


Make sure you have selenium server running… or use ‘selenium-webdriver/remote’ class.


  • create a profile
  • modify the profile:
    • setPreference(key, value)
    • addExtension(path/To/Extenstion.xpi) or addExtension(path/To/Unpacked/Extension/)
  • create firefox capabilities and set the ‘firefox_profile’ capability
  • attach the capabilitites to your webdriver

I wanna see it!

     * with selenium webdriverJs
     * installs firebug 
     * and make the url that is opened on new tabs
    var webdriver = require('selenium-webdriver');

    // create profile
    var FirefoxProfile = require('firefox-profile');
    var myProfile = new FirefoxProfile();

    // you can add an extension by specifying the path to the xpi file 
    // or to the unzipped extension directory
    myProfile.addExtension('test/extensions/firebug-1.12.4-fx.xpi', function() {
        var capabilities = webdriver.Capabilities.firefox();

        // you can set firefox preferences BEFORE calling encoded()
        myProfile.setPreference('browser.newtab.url', '');
        // attach your newly created profile
        myProfile.encoded(function(encodedProfile) {
            capabilities.set('firefox_profile', encodedProfile);

            // start the browser
            var wd = new webdriver.Builder().
            // woot!

    /* with admc/wd
    /* installs firebug, and make it active by default

    var FirefoxProfile = require('firefox-profile'),
        wd = require('wd');

    // set some userPrefs if needed
    // Note: make sure you call encoded() after setting some userPrefs
    var fp = new FirefoxProfile();
    // activate and open firebug by default for all sites
    fp.setPreference('extensions.firebug.allPagesActivation', 'on');
    // activate the console panel
    fp.setPreference('extensions.firebug.console.enableSites', true);
    // show the console panel
    fp.setPreference('extensions.firebug.defaultPanelName', 'console');
    // done with prefs?

    // you can install multiple extensions at the same time
    fp.addExtensions(['./test/extensions/firebug-1.12.4-fx.xpi'], function() {
        fp.encoded(function(zippedProfile) {
            browser = wd.promiseChainRemote();
              // set firefox_profile capabilities HERE!!!!
              firefox_profile: zippedProfile
            // woOot!!

You can also copy an existing profile… Check the doc FirefoxProfile.copy(...).

Command Line Interface

It allows to copy (from profile name or profile directory) or create firefox profiles with installed extensions. Note that it does not allow to load user preferences… yet.

Run node_modules/bin/firefox-profile -h to get the help message:

usage: firefox-profile [-v] [-p profilename || -c profile_dir] [-e extension_path1 [-e extension_path2]] [-o destination_dir || --ouput destination_dir || -b [file_path] || --base64 [file_path]]

-v: verbose mode (same as --verbose)
-h: show this message (same as --help)
-p profilename: profile to copy (same as --profile)
-c profile_dir: profile folder path to copy (same as --copy)
-e extension_path: file path to extension to add to the profile. Can be present multiple times (same as --extension)
-o destination_dir (or --output destination_dir): folder where the profile will be created.
-b [file_path](or --base64): write the encoded firefox profile to stdout or to file_path if specified.

API Documentation

The API documentation can be found in doc/.

It can be regenerated using grunt docs. Requires apidox - listed in devDependencies.


# or
grunt mochacov:unit


grunt mochacov:coverage

Generates doc/coverage.html


  • add documentation and comments
  • write tests
  • fix bugs
  • write more tests
  • fix more bugs
  • clean tmp directory on process ‘exit’ and ‘SIGINT’


This class is actually a port of the python class.

Found a bug?

Open a github issue.

Related Repositories

Top Contributors

saadtazi hbenl jsantell testingbot cadorn erikvold jugarrit marcbachmann XrXr happylynx


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