Chrome support.

chrome/BUILD

+source edge/BUILD

edge/BUILD

 build --source firefox \
-      --target edge \
+      --target $target \
       --override "edge/manifest.override.json" \
       --ext zip
 

edge/manifest.override.json

@@ -3,5 +3,9 @@
 	"16": "icon16x16.png",
         "32": "icon32x32.png",
 	"128": "icon128x128.png"
-    }
+    },
+    "permissions": [
+	"clipboardWrite",
+	"contextMenus"
+    ]
 }

firefox/manifest.merge.json

 {
     "background": {
         "scripts": [
+	    "links.js",
 	    "menu.js"
         ]
     },

scripts/build.sh

@@ -62,7 +62,7 @@ parse_args() {
 }
 
 setup_globals() {
-    TARGETS=(thunderbird firefox edge)
+    TARGETS=(thunderbird firefox edge chrome)
     BASEDIR="$( cd "$(dirname "${BASH_SOURCE[0]}")/.." >/dev/null 2>&1 && pwd )"
 
     BUILDDIR="$BASEDIR/build"

shared/menu.js

@@ -21,6 +21,24 @@
 
 // Context menu
 
+/*
+ * Workaround for Chrome
+ */
+async function copyToClipboard(text) {
+    try {
+	await navigator.clipboard.writeText(text);
+    }
+    catch {
+	const textArea = document.createElement('textarea');
+	document.body.append(textArea);
+	textArea.textContent = text;
+	textArea.select();
+	document.execCommand('copy');
+	textArea.remove();
+    }
+}
+
+
 /*
  * Minimal polyfill for Chrome
  */
@@ -41,6 +59,6 @@ browser.menus.create({
 
 browser.menus.onClicked.addListener((info, tab) => {
     if (info.menuItemId == "liu-safelinks-copy") {
-	navigator.clipboard.writeText(untangleLink(info.linkUrl));
+	copyToClipboard(untangleLink(info.linkUrl));
     }
 });