diff --git a/Makefile b/Makefile
index c6eb5c1..372c606 100644
--- a/Makefile
+++ b/Makefile
@@ -28,22 +28,21 @@ packages:
 	sudo apt install -y $(PACKAGES)
 
 firefox:
+FIREFOX_KEYRING := /etc/apt/keyrings/packages.mozilla.org.asc
+MOZILLA_LIST := /etc/apt/sources.list.d/mozilla.list
+MOZILLA_PREF := /etc/apt/preferences.d/mozilla
+KEYRING_URL := https://packages.mozilla.org/apt/repo-signing-key.gpg
+
+	@echo "Adding Mozilla signing key..."
 	sudo install -d -m 0755 /etc/apt/keyrings
-	wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | \
-		sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null
-
-	gpg -n -q --import --import-options import-show \
-		/etc/apt/keyrings/packages.mozilla.org.asc | \
-	awk '/pub/{getline; gsub(/^ +| +$$/,""); \
-	if($$0 == "35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3") \
-	print "\nThe key fingerprint matches ("$$0").\n"; \
-	else \
-	print "\nVerification failed: the fingerprint ("$$0") does not match the expected one.\n"}'
-
-	echo "Types: deb\nURIs: https://packages.mozilla.org/apt\nSuites: mozilla\nComponents: main\nSigned-By: /etc/apt/keyrings/packages.mozilla.org.asc" | \
-		sudo tee /etc/apt/sources.list.d/mozilla.sources
-
+	wget -q $(KEYRING_URL) -O- | sudo tee $(FIREFOX_KEYRING) > /dev/null
+	@echo "Adding Mozilla APT repository..."
+	echo "deb [signed-by=$(FIREFOX_KEYRING)] https://packages.mozilla.org/apt mozilla main" | sudo tee $(MOZILLA_LIST) > /dev/null
+	@echo "Configuring apt preferences to prioritize Mozilla..."
+	echo "Package: *\nPin: origin packages.mozilla.org\nPin-Priority: 1000" | sudo tee $(MOZILLA_PREF) > /dev/null
+	@echo "Updating package lists..."
 	sudo apt-get update
+	@echo "Installing Firefox..."
 	sudo apt-get install -y firefox firefox-l10n-ru
 
 qtfix: