diff --git a/.mozilla/firefox/user-arch.js b/.mozilla/firefox/user-arch.js
new file mode 100644
index 0000000..314da61
--- /dev/null
+++ b/.mozilla/firefox/user-arch.js
@@ -0,0 +1,2 @@
+user_pref("gfx.webrender.all", true); // Composition => WebRender (hardware)
+user_pref("media.ffmpeg.vaapi.enabled", true); // VA-API (hardware acceleration)
diff --git a/Makefile b/Makefile
index 721f6a4..2f94ef3 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,7 @@ sync-arch:
 # Firefox
 	-@$(RM) $(HOME)/.mozilla/firefox/*.default-release/user.js
 	@$(WGET) $(REPO_SRC)/.mozilla/firefox/user.js -P $(HOME)/.mozilla/firefox/*.default-release
+	@$(CURL) $(REPO_SRC)/.mozilla/firefox/user-arch.js >> $(HOME)/.mozilla/firefox/*.default-release/user.js
 
 # VSCodium
 	@$(WGET) $(REPO_SRC)/.config/VSCodium/product.json -O $(HOME)/.config/VSCodium/product.json
diff --git a/arch.sh b/arch.sh
index d69945e..0228720 100644
--- a/arch.sh
+++ b/arch.sh
@@ -313,8 +313,11 @@ main() {
     sleep 2
     pkill firefox
     wget -q --show-progress https://git.mylloon.fr/Anri/confOS/raw/branch/main/.mozilla/firefox/user.js -P "$HOME"/.mozilla/firefox/*.default-release
+	curl -s https://git.mylloon.fr/Anri/confOS/raw/branch/main/.mozilla/firefox/user-arch.js >> "$HOME"/.mozilla/firefox/*.default-release/user.js
     # 2 fingers history control
     echo "export MOZ_USE_XINPUT2=1" >> "$HOME"/.profile
+    # Hardware acceleration
+    echo "export MOZ_DRM_DEVICE=/dev/dri/renderD128" >> "$HOME"/.profile
     # Download extension configuration (TODO: Check Download Folder's Name)
     #wget -q --show-progress https://git.mylloon.fr/Anri/confOS/raw/branch/main/.mozilla/firefox/extensions/Dark-Reader-Settings.json -P "$HOME"/Téléchargements
     #wget -q --show-progress https://git.mylloon.fr/Anri/confOS/raw/branch/main/.mozilla/firefox/extensions/SponsorBlockConfig.json -P "$HOME"/Téléchargements