Error9 reports
Fix WebDriverException
in Selenium
✅ Solution
WebDriverException often arises from incompatible browser/driver versions or outdated browser installations. To resolve this, update your browser to the latest version and then download the corresponding WebDriver executable (ChromeDriver, GeckoDriver, etc.) that matches your browser version. Finally, ensure the WebDriver executable is in your system's PATH or explicitly specified in your Selenium code.
Related Issues
Real GitHub issues where developers encountered this error:
[🐛 Bug]: WebDriver can't deserialize responses containing broken emojisJun 5, 2026
[🐛 Bug]: Network monitoring / interception causes navigation to fail due to timeout in Selenium 4.43May 7, 2026
[🐛 Bug]: [py] Selenium Edge driver outputting unwanted log in console "DevTools listening on..." persistent problemMay 4, 2026
[🐛 Bug]: Grid does not get Driver when session capabilities expect "system" proxyApr 17, 2026
[🐛 Bug]: [java] NoSuchElementException no longer thrown when using custom By selectors in 4.39+ (now WebDriverException of "unexpected driver response: null")Mar 26, 2026
Timeline
First reported:Feb 24, 2026
Last reported:Jun 5, 2026