diff --git a/chrome-extension/content.js b/chrome-extension/content.js
index 0b143e5..b369074 100644
--- a/chrome-extension/content.js
+++ b/chrome-extension/content.js
@@ -11,6 +11,7 @@
 			.replace(/\.[^\.]+\.my\.salesforce\.com/, '')
 			.replace('.my.salesforce.com', '')
 			.replace('.lightning.force.com', '')
+			.replace('.sandbox.lightning.force.com', '')
 			.replace(/--c\.[^\.]+\.visual\.force\.com/, '');
 	};
 
diff --git a/chrome-extension/manifest.json b/chrome-extension/manifest.json
index 6d469ce..881e818 100644
--- a/chrome-extension/manifest.json
+++ b/chrome-extension/manifest.json
@@ -19,7 +19,8 @@
 			"matches": [
 				"*://*.salesforce.com/*",
 				"*://*.visual.force.com/*",
-				"*://*.lightning.force.com/*"
+				"*://*.lightning.force.com/*",
+				"*://*.sandbox.lightning.force.com/*"
 			],
 			"js": [ "content.js" ],
 			"all_frames": false,