Matching group. ^^

data/jusfox.js

@@ -1,12 +1,5 @@
 if (document.body) {
- var replaced = $("body:not(a)").html().replace(/\S{0}§\S*\b/g, 
+ var replaced = $("body:not(a)").html().replace(/\S{0}(§\S*)\b/g, 
             '<a href="javascript:alert($1)">$1</a>');
  $("body").html(replaced);
-/* $('body, body *').contents().filter(function() {
-        return this.nodeType == Node.TEXT_NODE
-            && this.nodeValue.indexOf('§') >= 0;
-    }).each(function() {
-        this.nodeValue = this.nodeValue.replace(/\S{0}§\S*\b/g,
-	    '<a href="javascript:alert($1)">$1</a>');
-    }); */
 };

index.js

@@ -4,6 +4,7 @@ require("sdk/tabs").on("ready", getLinks);
  
 function getLinks(tab) {
   tab.attach({
-    contentScriptFile: self.data.url("jusfox.js")
+    contentScriptFile: [self.data.url("jquery.js"),
+			self.data.url("jusfox.js")]
   });
 }