diff --git a/Dockerfile b/Dockerfile
index 8e0598c4b..438635e18 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -33,9 +33,11 @@ FROM maven:3-jdk-8 AS builder
 # Install firefox browser for sake of JavaScript unit tests
 RUN apt-get update && apt-get install -y firefox-esr
 
-# Use args to build radius auth extension such as
-# `--build-arg BUILD_PROFILE=lgpl-extensions`
-ARG BUILD_PROFILE
+# Arbitrary arguments that can be passed to the maven build. By default, an
+# argument will be provided to explicitly unskip any skipped tests. To, for
+# example, allow the building of the RADIUS auth extension, pass a build profile
+# as well: `--build-arg MAVEN_ARGUMENTS="-P lgpl-extensions -DskipTests=false"`.
+ARG MAVEN_ARGUMENTS="-DskipTests=false"
 
 # Build environment variables
 ENV \
@@ -48,7 +50,7 @@ COPY guacamole-docker/bin/ /opt/guacamole/bin/
 COPY . "$BUILD_DIR"
 
 # Run the build itself
-RUN /opt/guacamole/bin/build-guacamole.sh "$BUILD_DIR" /opt/guacamole "$BUILD_PROFILE"
+RUN /opt/guacamole/bin/build-guacamole.sh "$BUILD_DIR" /opt/guacamole
 
 # For the runtime image, we start with the official Tomcat distribution
 FROM tomcat:${TOMCAT_VERSION}-${TOMCAT_JRE}
diff --git a/guacamole-common-js/.gitignore b/guacamole-common-js/.gitignore
index 876bf8396..cc194bb9a 100644
--- a/guacamole-common-js/.gitignore
+++ b/guacamole-common-js/.gitignore
@@ -1,5 +1,4 @@
 node/
 node_modules/
 target/
-.tmp/
 *~
diff --git a/guacamole-common-js/pom.xml b/guacamole-common-js/pom.xml
index ee969b183..549942605 100644
--- a/guacamole-common-js/pom.xml
+++ b/guacamole-common-js/pom.xml
@@ -44,7 +44,13 @@
         between karma and firefox. The default location, /tmp, does not work
         if firefox is installed via snap.
         -->
-        <firefox.temp.dir>${project.basedir}/.tmp</firefox.temp.dir>
+        <firefox.temp.dir>${project.build.directory}/tmp</firefox.temp.dir>
+
+        <!--
+        Skip tests unless requested otherwise with -DskipTests=false.
+        Skipped by default because these tests require firefox to be installed.
+        -->
+        <skipTests>true</skipTests>
         
     </properties>
 
@@ -125,18 +131,29 @@
                 </executions>
             </plugin>
 
+            <!-- Skip tests if configured to do so -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.0.0</version>
+                <configuration>
+                    <skipTests>${skipTests}</skipTests>
+                </configuration>
+            </plugin>
+
             <!-- Ensure the firefox temp directory exists -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-antrun-plugin</artifactId>
+                <version>3.1.0</version>
                 <executions>
                     <execution>
                         <id>createFirefoxTempdir</id>
-                        <phase>test-compile</phase>
+                        <phase>test</phase>
                         <configuration>
-                            <tasks>
+                            <target>
                                 <mkdir dir="${firefox.temp.dir}"/>
-                            </tasks>
+                            </target>
                         </configuration>
                         <goals>
                             <goal>run</goal>
@@ -174,7 +191,7 @@
                     <!-- Install node.js and NPM before running tests -->
                     <execution>
                         <id>install node and npm</id>
-                        <phase>test-compile</phase>
+                        <phase>test</phase>
                         <goals>
                             <goal>install-node-and-npm</goal>
                         </goals>
@@ -183,7 +200,7 @@
                     <!-- Install test dependencies -->
                     <execution>
                         <id>npm install</id>
-                        <phase>test-compile</phase>
+                        <phase>test</phase>
                         <goals>
                             <goal>npm</goal>
                         </goals>
diff --git a/guacamole-docker/bin/build-guacamole.sh b/guacamole-docker/bin/build-guacamole.sh
index 7924c4e44..090924186 100755
--- a/guacamole-docker/bin/build-guacamole.sh
+++ b/guacamole-docker/bin/build-guacamole.sh
@@ -38,15 +38,9 @@
 ##     subdirectories within this directory, and files will thus be grouped by
 ##     extension type.
 ##
-## @param BUILD_PROFILE
-##     The build profile that will be passed to Maven build process. Defaults
-##     to empty string. Can be set to "lgpl-extensions" to e.g. include
-##     RADIUS authentication extension.
-##
 
 BUILD_DIR="$1"
 DESTINATION="$2"
-BUILD_PROFILE="$3"
 
 #
 # Create destination, if it does not yet exist
@@ -60,16 +54,11 @@ mkdir -p "$DESTINATION"
 
 cd "$BUILD_DIR"
 
-# Required for build leveraging PhantomJS for unit testing (without this, the
-# build fails with "libssl_conf.so: cannot open shared object file: No such
-# file or directory")
-export OPENSSL_CONF=/etc/ssl
+#
+# Run the maven build, applying any arbitrary provided maven arguments.
+#
 
-if [ -z "$BUILD_PROFILE" ]; then
-    mvn package
-else
-    mvn -P "$BUILD_PROFILE" package
-fi
+mvn $MAVEN_ARGUMENTS package
 
 #
 # Copy guacamole.war to destination