[TearDown] public void TearDown()
Cannot start the driver service on http://localhost · Issue #372 · mozilla/geckodriver [TearDown] public void TearDown() Cannot start the driver
If you see an error like “cannot start the driver service on http://localhost:xxxxx” when using Selenium with Firefox in C#, this note explains common causes and fixes. [TearDown] public void TearDown() Cannot start the driver
from selenium import webdriver from selenium.webdriver.firefox.service import Service from selenium.webdriver.firefox.options import Options [TearDown] public void TearDown() Cannot start the driver
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Security software often flags browser automation tools like GeckoDriver as suspicious activity. When this happens, the driver service may be blocked entirely, resulting in the “cannot start the driver service” error.
Have another strange Selenium error? Let me know in the comments!