diff --git a/programs/firefox/bookmarks/bookmarks.json b/programs/firefox/bookmarks/bookmarks.json
index e67fe31..b6b06e4 100644
--- a/programs/firefox/bookmarks/bookmarks.json
+++ b/programs/firefox/bookmarks/bookmarks.json
@@ -127,18 +127,15 @@
             "bookmarks": [
               {
                 "name": "JET Data Services",
-                "url": "https://data.jet.uk",
-                "tags": ["data"]
+                "url": "https://data.jet.uk"
               },
               {
                 "name": "PPF Query",
-                "url": "https://data.jet.uk/ppf/browse/ppfquery",
-                "tags": ["data"]
+                "url": "https://data.jet.uk/ppf/browse/ppfquery"
               },
               {
                 "name": "ReqCo",
-                "url": "https://data.jet.uk/reqco/myrequests",
-                "tags": ["data"]
+                "url": "https://data.jet.uk/reqco/myrequests"
               }
             ]
           },
@@ -168,6 +165,10 @@
           {
             "name": "Diagnostic Handbook",
             "url": "https://intranet.ccfe.ac.uk/mastu-handbook"
+          },
+          {
+            "name": "Data Access and Tools",
+            "url": "https://users.mastu.ukaea.uk/data-access-and-tools"
           }
         ]
       },