v0.0.6

src/bg.js

@@ -24,11 +24,16 @@ var changeIcon = function(color, currentIcon, options) {
 			ctx.fillRect(0, 0, 16, options.globals.width);
 		}
 
-
 		var link = document.createElement('link');
 		link.type = 'image/x-icon';
 		link.rel = 'shortcut icon';
 		link.href = canvas.toDataURL("image/x-icon");
+		link.id = 'tab-groupcolor' + '-favicon';
+		var oldicon = document.getElementById('tab-groupcolor' + '-favicon');
+		if (oldicon) {
+			oldicon.outerHTML = '';
+			delete oldicon;
+		}
 		document.getElementsByTagName('head')[0].appendChild(link);
 	}
 };

src/manifest.json

@@ -2,7 +2,7 @@
   "description": "Color tabs based on their parent.",
   "manifest_version": 2,
   "name": "Color Tab Group",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "homepage_url": "https://git.e.tern.al/s2/tab-groupcolor",
   "icons": {
     "48": "img/icon-48.png"