Resolving the “Unable to Obtain Stable Firefox Connection in 60 Seconds” Error

Resolving the "Unable to Obtain Stable Firefox Connection in 60 Seconds" Error

21 May 2024 Stephan Petzl Leave a comment Tech-Help

If you encounter the error message “unable to obtain stable firefox connection in 60 seconds (” while running RSpec tests with Ruby on Rails, you’re not alone. This error can be particularly frustrating, but there are several potential solutions that can help you get back on track.

Update Your Capybara and Selenium WebDriver Versions

One of the most effective solutions is to ensure you are using the correct versions of Capybara and Selenium WebDriver. An outdated version of Selenium WebDriver might not support the version of Firefox you are using.

First, upgrade to Capybara version 1.0.1 or later:

gem 'capybara', '>= 1.0.1'

Then, specify the Selenium WebDriver gem in your Gemfile:

gem 'selenium-webdriver', '2.25.0'

Run bundle install to apply these changes.

Switch to ChromeDriver

If updating Capybara and Selenium WebDriver does not resolve the issue, consider switching to ChromeDriver. ChromeDriver often provides a more stable environment for running tests.

Install ChromeDriver and register it in your spec_helper.rb:

Capybara.register_driver :selenium_chrome do |app|, browser: :chrome)
Capybara.current_driver = :selenium_chrome

Then, run your tests using the Chrome driver.

Use a Virtual X Server (Xvfb)

If you are running tests on a headless server, the absence of a display for rendering the browser can cause this error. Using a virtual X server can solve this problem.

Install Xvfb and related packages:

sudo apt-get install xvfb
sudo apt-get install x11-xkb-utils
sudo apt-get install xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic

Run your tests with the following command:

xvfb-run bundle exec rake spec:features

Set the DISPLAY Environment Variable

If you are running your script from an SSH session, ensure that the $DISPLAY environment variable is set correctly. This variable indicates which display the browser should render on.

Set the $DISPLAY variable before starting your Ruby script:

export DISPLAY=:0


By following the above solutions, you should be able to resolve the “unable to obtain stable firefox connection in 60 seconds” error and continue running your tests smoothly. However, if you are looking for a more streamlined and efficient testing solution, consider using Repeato.

Repeato is a no-code test automation tool for iOS and Android that helps you create, run, and maintain automated tests for your apps. With its intuitive test recorder and computer vision-based approach, Repeato makes it easy to edit and run tests quickly. Additionally, Repeato’s support for testing websites inside an Android emulator or device will be released later this summer, providing a comprehensive solution for your testing needs.

For more information, visit our documentation or contact us for support.

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