I've seen this issue around, but, unfortunately, I have struggled to find a definite resolution.
Perhaps, if someone has it working for themselves, they could share what firefox and geckodriver combination they have it working with.
Edit: I am running this through Jenkins, so maybe there is an embedded firefox in Jenkins that this is using, which differs from that on the server, itself.
For myself, I am using: Centos 7 Mozilla Firefox 67.0 GeckoDriver version 0.26.0 (for linux64; downloaded from here: https://github.com/mozilla/geckodriver/releases) org.seleniumhq.selenium:selenium-server:3.4.0
Below is the stacktrace that I get (in place of the package paths, I put the lines of my code in bold where this issue is triggered):
_org.openqa.selenium.WebDriverException: Failed to decode response from marionette Build info: version: '3.4.0', revision: 'unknown', time: 'unknown' System info: host: 'jenkins2', ip: '172.16.12.149', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-957.21.3.el7.x86_64', java.version: '1.8.0_211' Driver info: org.openqa.selenium.firefox.FirefoxDriver Capabilities [{moz:profile=/tmp/rust_mozprofileuGyLim, rotatable=false, moz:geckodriverVersion=0.26.0, timeouts={implicit=0.0, pageLoad=300000.0, script=30000.0}, pageLoadStrategy=normal, unhandledPromptBehavior=dismiss and notify, strictFileInteractability=false, moz:headless=true, platform=ANY, moz:accessibilityChecks=false, moz:useNonSpecCompliantPointerOrigin=false, acceptInsecureCerts=false, browserVersion=67.0, moz:shutdownTimeout=60000.0, platformVersion=3.10.0-957.21.3.el7.x86_64, moz:processID=31137.0, browserName=firefox, moz:buildID=20190516215225, javascriptEnabled=true, platformName=linux, setWindowRect=true, moz:webdriverClick=true}] Session ID: bd33f758-d6fa-46a4-8e52-c9d019f8ec43 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:150) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:115) at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:45) at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:164) at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:637) at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:364) at "driver.get(url);"(LandingPage.java:385) at "accessFirefox();" (LandingPage.java:338) at "accessPage(browser);"(LandingPage.java:45) at "landingPage = new LandingPage();"BasicTest.java:14) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)_
