diff --git a/.gitignore b/.gitignore
index 8cefd1e..57177db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@ jsonvv/test*
 /bundle/fonts/extra
 pythonlib/*.png
 scripts/*.png
+scripts/test*
 .vscode
 /tests/*.disabled
 k8s/
@@ -34,3 +35,8 @@ venv/
 __pycache__/
 *.pyc
 *.mmdb
+
+# Closed source patches
+private
+.passwd
+closedsrc
diff --git a/Makefile b/Makefile
index aaecd59..f75b82c 100644
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,26 @@ _ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))
 $(eval $(_ARGS):;@:)
 
 fetch:
+	# Fetching private patches...
+	@if [ -d "patches/private" ]; then \
+		echo "Found patches/private. Skipping private patches fetch..."; \
+	else \
+		if [ -z "$$CAMOUFOX_PASSWD" ]; then \
+			echo "CAMOUFOX_PASSWD environment variable not set. Skipping private patches..."; \
+		else \
+			echo "Fetching private patches..."; \
+			mkdir -p patches/closedsrc; \
+			if ! aria2c --dry-run "https://camoufox.com/pipeline/rev-$(version)-$(release).7z" 2>/dev/null; then \
+				echo "No private patches found for this version"; \
+				exit 1; \
+			else \
+				aria2c -o rev-$(version)-$(release).7z "https://camoufox.com/pipeline/rev-$(version)-$(release).7z" && \
+				7z x -p"$$CAMOUFOX_PASSWD" rev-$(version)-$(release).7z -o./patches/closedsrc && \
+				rm rev-$(version)-$(release).7z; \
+			fi; \
+		fi; \
+	fi
+	# Fetching the Firefox source tarball...
 	aria2c -x16 -s16 -k1M -o $(ff_source_tarball) "https://archive.mozilla.org/pub/firefox/releases/$(version)/source/firefox-$(version).source.tar.xz"; \
 
 setup-minimal:
@@ -193,6 +213,9 @@ check-arg:
 		exit 1; \
 	fi
 
+grep:
+	grep "$(_ARGS)" -r ./patches/*.patch
+
 patch:
 	@make check-arg $(_ARGS);
 	cd $(cf_source_dir) && patch -p1 -i ../$(_ARGS)
@@ -221,4 +244,14 @@ tests:
 update-ubo-assets:
 	bash ./scripts/update-ubo-assets.sh
 
+upload:
+	# ===============================
+	# This is only for internal use. You can ignore this.
+	# ===============================
+
+	@test -f .passwd || { echo "Error: .passwd file not found"; exit 1; }
+	@mkdir -p ../camoufox-web/internal
+	@rm -rf ../camoufox-web/pipeline/rev-$(version)-$(release).7z
+	7z a "-p$$(cat ./.passwd)" -mhe=on ../camoufox-web/pipeline/rev-$(version)-$(release).7z "./patches/private/*.patch"
+
 vcredist_arch := $(shell echo $(arch) | sed 's/x86_64/x64/' | sed 's/i686/x86/')
diff --git a/additions/camoucfg/MaskConfig.hpp b/additions/camoucfg/MaskConfig.hpp
index 1b61b65..76fc407 100644
--- a/additions/camoucfg/MaskConfig.hpp
+++ b/additions/camoucfg/MaskConfig.hpp
@@ -158,6 +158,10 @@ inline std::optional<bool> GetBool(const std::string& key) {
   return std::nullopt;
 }
 
+inline bool CheckBool(const std::string& key) {
+  return GetBool(key).value_or(false);
+}
+
 inline std::optional<std::array<uint32_t, 4>> GetRect(
     const std::string& left, const std::string& top, const std::string& width,
     const std::string& height) {
diff --git a/patches/webgl-spoofing.patch b/patches/webgl-spoofing.patch
index 8b2d403..0000d86 100644
--- a/patches/webgl-spoofing.patch
+++ b/patches/webgl-spoofing.patch
@@ -164,8 +164,8 @@ index a1e5c4792d..be99491bf8 100644
 +    case dom::WEBGL_debug_renderer_info_Binding::UNMASKED_VENDOR_WEBGL:
 +      break;
 +    default:
-+      if (MaskConfig::GetBool(mIsWebGL2 ? "webGl2:parameters:blockIfNotDefined"
-+                                        : "webGl:parameters:blockIfNotDefined")) {
++      if (MaskConfig::CheckBool(mIsWebGL2 ? "webGl2:parameters:blockIfNotDefined"
++                                          : "webGl:parameters:blockIfNotDefined")) {
 +        retval.set(JS::NullValue());
 +        return;
 +      }
@@ -319,7 +319,7 @@ index a1e5c4792d..be99491bf8 100644
 +      });
 +    }
 +    // Check if block if not defined is on
-+    if (MaskConfig::GetBool(
++    if (MaskConfig::CheckBool(
 +            mIsWebGL2 ? "webGl2:shaderPrecisionFormats:blockIfNotDefined"
 +                      : "webGl:shaderPrecisionFormats:blockIfNotDefined")) {
 +      Maybe<webgl::ShaderPrecisionFormat> ret;
diff --git a/settings/camoucfg.jvv b/settings/camoucfg.jvv
index 83da945..4ac015f 100644
--- a/settings/camoucfg.jvv
+++ b/settings/camoucfg.jvv
@@ -270,6 +270,9 @@
         "stencil": "bool"
     },
 
+    "canvas:aaOffset": "int",
+    "canvas:aaCapOffset": "bool",
+
     "voices": "array[@VOICE_TYPE]",
     "voices:blockIfNotDefined": "bool",
     "voices:fakeCompletion": "bool",
diff --git a/settings/properties.json b/settings/properties.json
index 938d723..22262ed 100644
--- a/settings/properties.json
+++ b/settings/properties.json
@@ -83,6 +83,8 @@
   { "property": "webGl2:shaderPrecisionFormats:blockIfNotDefined", "type": "bool" },
   { "property": "webGl:contextAttributes", "type": "dict" },
   { "property": "webGl2:contextAttributes", "type": "dict" },
+  { "property": "canvas:aaOffset", "type": "int" },
+  { "property": "canvas:aaCapOffset", "type": "bool" },
   { "property": "voices", "type": "array" },
   { "property": "voices:blockIfNotDefined", "type": "bool" },
   { "property": "voices:fakeCompletion", "type": "bool" },
diff --git a/upstream.sh b/upstream.sh
index 860a44b..5ba7fd2 100644
--- a/upstream.sh
+++ b/upstream.sh
@@ -1,2 +1,2 @@
 version=133.0
-release=beta.18
+release=beta.19