[ubuntu] replace wget to download_with_retries helper (#3087)

images/linux/scripts/installers/firefox.sh

@@ -4,6 +4,9 @@
 ##  Desc:  Installs Firefox
 ################################################################################
 
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/install.sh
+
 # Install Firefox
 apt-get install -y firefox
 
@@ -14,15 +17,13 @@ echo 'pref("intl.locale.requested","en_US");' >> "/usr/lib/firefox/browser/defau
 # Download and unpack latest release of geckodriver
 URL=$(curl -s https://api.github.com/repos/mozilla/geckodriver/releases/latest | jq -r '.assets[].browser_download_url | select(test("linux64.tar.gz$"))')
 echo "Downloading geckodriver $URL"
-wget "$URL" -O geckodriver.tar.gz
-tar -xzf geckodriver.tar.gz
-rm geckodriver.tar.gz
+download_with_retries "$URL" "/tmp" geckodriver.tar.gz
 
 GECKODRIVER_DIR="/usr/local/share/gecko_driver"
 GECKODRIVER_BIN="$GECKODRIVER_DIR/geckodriver"
 
 mkdir -p $GECKODRIVER_DIR
-mv "geckodriver" $GECKODRIVER_BIN
+tar -xzf /tmp/geckodriver.tar.gz -C $GECKODRIVER_DIR
 
 chmod +x $GECKODRIVER_BIN
 ln -s "$GECKODRIVER_BIN" /usr/bin/