diff --git a/src/install_host_app.bat b/src/install_host_app.bat
index d28d43d..758b9af 100644
--- a/src/install_host_app.bat
+++ b/src/install_host_app.bat
@@ -34,6 +34,9 @@ IF NOT "%1"=="" (
     ) ELSE IF "%1"=="firefox" (
         SET "TARGET_REG=HKCU\SOFTWARE\Mozilla\NativeMessagingHosts\%APP_NAME%"
         SHIFT
+    ) ELSE IF "%1"=="librewolf" (
+        SET "TARGET_REG=HKCU\SOFTWARE\LibreWolf\NativeMessagingHosts\%APP_NAME%"
+        SHIFT
     ) ELSE IF "%1"=="chrome"  (
         SET "TARGET_REG=HKCU\Software\Google\Chrome\NativeMessagingHosts\%APP_NAME%"
         SHIFT
@@ -101,7 +104,7 @@ REG ADD "%TARGET_REG%" /ve /d "%HOST_MANIFEST_FULL%" /f || (
 EXIT /B
 
 :help
-ECHO Usage: %0 [OPTION] [chrome^|chromium^|firefox^|opera^|vivaldi]
+ECHO Usage: %0 [OPTION] [chrome^|chromium^|firefox^|opera^|vivaldi^|librewolf]
 ECHO
 ECHO Options:
 ECHO   --local    Install files from disk instead of downloading them
diff --git a/src/install_host_app.sh b/src/install_host_app.sh
index 96aa975..c2a4c48 100755
--- a/src/install_host_app.sh
+++ b/src/install_host_app.sh
@@ -20,11 +20,13 @@ if [ "$KERNEL_NAME" = 'Darwin' ]; then
     TARGET_DIR_CHROMIUM="/Library/Application Support/Chromium/NativeMessagingHosts"
     TARGET_DIR_FIREFOX="/Library/Application Support/Mozilla/NativeMessagingHosts"
     TARGET_DIR_VIVALDI="/Library/Application Support/Vivaldi/NativeMessagingHosts"
+    TARGET_DIR_LIBREWOLF="/Library/Application Support/LibreWolf/NativeMessagingHosts"
   else
     TARGET_DIR_CHROME="$HOME/Library/Application Support/Google/Chrome/NativeMessagingHosts"
     TARGET_DIR_CHROMIUM="$HOME/Library/Application Support/Chromium/NativeMessagingHosts"
     TARGET_DIR_FIREFOX="$HOME/Library/Application Support/Mozilla/NativeMessagingHosts"
     TARGET_DIR_VIVALDI="$HOME/Library/Application Support/Vivaldi/NativeMessagingHosts"
+    TARGET_DIR_LIBREWOLF="$HOME/Library/Application Support/LibreWolf/NativeMessagingHosts"
   fi
 else
   if [ "$(whoami)" = "root" ]; then
@@ -32,16 +34,18 @@ else
     TARGET_DIR_CHROMIUM="/etc/chromium/native-messaging-hosts"
     TARGET_DIR_FIREFOX="/usr/lib/mozilla/native-messaging-hosts"
     TARGET_DIR_VIVALDI="/etc/vivaldi/native-messaging-hosts"
+    TARGET_DIR_LIBREWOLF="/usr/lib/librewolf/native-messaging-hosts"
   else
     TARGET_DIR_CHROME="$HOME/.config/google-chrome/NativeMessagingHosts"
     TARGET_DIR_CHROMIUM="$HOME/.config/chromium/NativeMessagingHosts"
     TARGET_DIR_FIREFOX="$HOME/.mozilla/native-messaging-hosts"
     TARGET_DIR_VIVALDI="$HOME/.config/vivaldi/NativeMessagingHosts"
+    TARGET_DIR_LIBREWOLF="$HOME/.librewolf/native-messaging-hosts"
   fi
 fi
 
 usage() {
-  echo "Usage: $0 [OPTION] [chrome|chromium|firefox|opera|vivaldi]
+  echo "Usage: $0 [OPTION] [chrome|chromium|firefox|opera|vivaldi|librewolf]
 
   Example:
     $0 firefox   # Install host app for Mozilla Firefox
@@ -65,6 +69,10 @@ while [ $# -gt 0 ]; do
       BROWSER_NAME="Firefox"
       TARGET_DIR="$TARGET_DIR_FIREFOX"
       ;;
+    librewolf)
+      BROWSER_NAME="Librewolf"
+      TARGET_DIR="$TARGET_DIR_LIBREWOLF"
+      ;;
     opera)
       BROWSER_NAME="Opera"
       TARGET_DIR="$TARGET_DIR_VIVALDI"