SeleniumHQ · titusfortner · Jan 4, 2026 · Dec 30, 2025 · Jan 4, 2026
diff --git a/dotnet/src/webdriver/Internal/Logging/LogContextManager.cs b/dotnet/src/webdriver/Internal/Logging/LogContextManager.cs
@@ -31,7 +31,12 @@ public LogContextManager()
     {
         var defaulLogHandler = new TextWriterHandler(Console.Error);
 
-        GlobalContext = new LogContext(LogEventLevel.Warn, null, null, [defaulLogHandler]);
+        // Enable debug logging if SE_DEBUG environment variable is set
+        var level = Environment.GetEnvironmentVariable("SE_DEBUG") is not null
+            ? LogEventLevel.Debug
+            : LogEventLevel.Warn;
+
+        GlobalContext = new LogContext(level, null, null, [defaulLogHandler]);
     }
 
     public ILogContext GlobalContext { get; }

diff --git a/java/src/org/openqa/selenium/internal/Debug.java b/java/src/org/openqa/selenium/internal/Debug.java
@@ -27,8 +27,9 @@ public class Debug {
   static {
     boolean simpleProperty = Boolean.getBoolean("selenium.debug");
     boolean longerProperty = Boolean.getBoolean("selenium.webdriver.verbose");
+    boolean envVar = Boolean.parseBoolean(System.getenv("SE_DEBUG"));
 
-    IS_DEBUG = simpleProperty || longerProperty;
+    IS_DEBUG = simpleProperty || longerProperty || envVar;
   }
 
   private Debug() {

diff --git a/javascript/selenium-webdriver/lib/logging.js b/javascript/selenium-webdriver/lib/logging.js
@@ -482,6 +482,12 @@ class LogManager {
 
 const logManager = new LogManager()
 
+// Enable debug logging if SE_DEBUG or SELENIUM_VERBOSE environment variable is set
+if (typeof process !== 'undefined' && process.env && (process.env.SE_DEBUG || process.env.SELENIUM_VERBOSE)) {
+  logManager.root_.setLevel(Level.ALL)
+  logManager.root_.addHandler(consoleHandler)
+}
+
 /**
  * Retrieves a named logger, creating it in the process. This function will
  * implicitly create the requested logger, and any of its parents, if they

diff --git a/javascript/selenium-webdriver/lib/test/index.js b/javascript/selenium-webdriver/lib/test/index.js
@@ -19,7 +19,6 @@
 
 //const build = require('./build')
 const fileserver = require('./fileserver')
-const logging = require('selenium-webdriver/lib/logging')
 const testing = require('selenium-webdriver/testing')
 
 //const NO_BUILD = /^1|true$/i.test(process.env['SELENIUM_NO_BUILD'])
@@ -53,11 +52,6 @@ process.on('unhandledRejection', (reason) => {
   console.error('Unhandled promise rejection:', reason)
 })
 
-if (/^1|true$/i.test(process.env['SELENIUM_VERBOSE'])) {
-  logging.installConsoleHandler()
-  logging.getLogger(`${logging.Type.DRIVER}.http`).setLevel(logging.Level.ALL)
-}
-
 testing.init()
 
 before(function () {

diff --git a/py/selenium/webdriver/__init__.py b/py/selenium/webdriver/__init__.py
@@ -15,6 +15,16 @@
 # specific language governing permissions and limitations
 # under the License.
 
+import logging
+import os
+
+# Enable debug logging if SE_DEBUG environment variable is set
+if os.environ.get("SE_DEBUG"):
+    logger = logging.getLogger("selenium")
+    logger.setLevel(logging.DEBUG)
+    if not logger.handlers:
+        logger.addHandler(logging.StreamHandler())
+
 from selenium.webdriver.chrome.options import Options as ChromeOptions
 from selenium.webdriver.chrome.service import Service as ChromeService
 from selenium.webdriver.chrome.webdriver import WebDriver as Chrome

diff --git a/rb/lib/selenium/webdriver.rb b/rb/lib/selenium/webdriver.rb
@@ -95,7 +95,7 @@ def self.for(*)
     #
 
     def self.logger(**)
-      level = $DEBUG || ENV.key?('DEBUG') ? :debug : :info
+      level = $DEBUG || ENV.key?('DEBUG') || ENV.key?('SE_DEBUG') ? :debug : :info
       @logger ||= WebDriver::Logger.new('Selenium', default_level: level, **)
     end
   end # WebDriver