Webdriver Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms

Don’t know if you resolved this problem, but I have just resolved the same issue from the other side.

It appears Selenium and Firefox have difficulty talking to each other – I suspect Firefox ‘evolve’ changes over a number of releases, so backward and forward compatibility are not always guaranteed, and incompatibility always seems to generate the same error.

My problem started when I moved from FF 15 to FF 16. Running on Ubuntu, this happens auto magically along with other upgrades but I believe this was the critical change.

The problem was resolved by moving from Selenium 2.24.1 to Selenium 2.25.0

As the selenium change is just download the jar file and run it instead of the old one,it’s worth trying this as a quick and easy troubleshooter – if it doesn’t help, just switch back. In your case, I’m not sure which version of Selenium to try, but I think 2.24 should work with FF 10.

Another issue I have found in the past is that Firefox would not run as root on Ubuntu. This happens if Selenium is running as a service, or possibly if it is fired up from a bash script or cron job. This may explain why it runs for you but not for Jenkins.

Related Posts:

  1. How to open a new tab using Selenium WebDriver in Java?
  2. How does jemalloc work? What are the benefits?
  3. Wait for page load in Selenium
  4. NS_BINDING_ABORTED Shown in Firefox with HttpFox
  5. NS_BINDING_ABORTED Shown in Firefox with HttpFox
  6. Selenium using Python – Geckodriver executable needs to be in PATH
  7. How to get locator of current web element?
  8. How to select a drop-down menu value with Selenium using Python?
  9. Call a Class From another class
  10. Selenium Webdriver: Element Not Visible Exception
  11. Is there a way to get element by XPath using JavaScript in Selenium WebDriver?
  12. When and how to use switchTo() method in webDriver (Selenium 2) to handle window/pop up
  13. Selenium using Java – The path to the driver executable must be set by the webdriver.gecko.driver system property
  14. ElementClickInterceptedException: element click intercepted:
  15. Test if element is present using Selenium WebDriver?
  16. SessionNotCreatedException: Message: session not created: This version of ChromeDriver only supports Chrome version 81
  17. What does (~0L) mean?
  18. Chrome not Firefox are not dumping to SSLKEYLOGFILE variable
  19. Chrome not Firefox are not dumping to SSLKEYLOGFILE variable
  20. Docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
  21. Hide scroll bar, but while still being able to scroll
  22. How to use the curl command in PowerShell?
  23. Error “The input device is not a TTY”
  24. “No X11 DISPLAY variable” – what does it mean?
  25. SBOX_FATAL_MEMORY_EXCEEDED error shown when Chromedriver turned 1800-1900 pages using Selenium
  26. ImportError: No module named ‘selenium’
  27. MacOS Catalina(v 10.15.3): Error: “chromedriver” cannot be opened because the developer cannot be verified. Unable to launch the chrome browser
  28. element not interactable exception in selenium web automation
  29. Error – trustAnchors parameter must be non-empty
  30. selenium – chromedriver executable needs to be in PATH
  31. stale element reference: element is not attached to the page document
  32. gpg: no valid OpenPGP data found
  33. Running Selenium with Headless Chrome Webdriver
  34. Pass variable from one Jenkins stage to others in sh
  35. Easiest way to alter eBay page content/DOM
  36. gpg: no valid OpenPGP data found
  37. Jenkins: 403 No valid crumb was included in the request
  38. XML Parsing Error: not well-formed in FireFox but good in Chrome
  39. ERROR: Error cloning remote repo ‘origin’
  40. Wait until page is loaded with Selenium WebDriver for Python
  41. How can I specify a display?
  42. How to restart Jenkins manually?
  43. How to use XPath preceding-sibling correctly
  44. Forward X11 failed: Network error: Connection refused
  45. Jenkins Project Artifacts and Workspac
  46. JavaScript console.log causes error: “Synchronous XMLHttpRequest on the main thread is deprecated…”
  47. Scroll Element into View with Selenium
  48. X Error of failed request: BadValue (integer parameter out of range for operation)
  49. Selenium — How to wait until page is completely loaded
  50. NoClassDefFoundError in Java: com/google/common/base/Function
  51. Chrome Error: You are using an unsupported command-line flag: –ignore-certifcate-errors. Stability and security will suffer
  52. Error `sec_error_revoked_certificate` when viewed in Firefox only
  53. Responsive media query not working in Google Chrome
  54. Can not click on a Element: ElementClickInterceptedException in Splinter / Selenium
  55. “google is not defined” when using Google Maps V3 in Firefox remotely
  56. Why am I suddenly getting a “Blocked loading mixed active content” issue in Firefox?
  57. Only on Firefox “Loading failed for the script with source”
  58. link not working
  59. Selenium “Unable to find a matching set of capabilities” despite driver being in /usr/local/bin
  60. How to easily add cropped screenshot to self-hosted WordPress as hosted image?
  61. Tell Jenkins to run a specific project on a particular slave node
  62. How can I prevent the warning No xauth data; using fake authentication data for X11 forwarding?

Leave a Comment