diff --git a/assets/themes/grb_import/grb.json b/assets/themes/grb_import/grb.json
index 5fe50df31f..4f051d6c3d 100644
--- a/assets/themes/grb_import/grb.json
+++ b/assets/themes/grb_import/grb.json
@@ -8,7 +8,7 @@
   },
   "description": {
     "nl": "Dit thema helpt het GRB importeren.",
-    "en": "This theme is an attempt to help automating the GRB import.<br/>Note that this is very hacky and 'steals' the GRB data from an external site; in order to do this, you need to install and activate <a href='https://addons.mozilla.org/en-US/firefox/addon/cors-everywhere/'>this firefox extension</a> for it to work."
+    "en": "This theme is an attempt to help automating the GRB import."
   },
   "language": [
     "nl",
diff --git a/langs/themes/en.json b/langs/themes/en.json
index 0f9e4a9724..429a6b4e7c 100644
--- a/langs/themes/en.json
+++ b/langs/themes/en.json
@@ -837,7 +837,7 @@
         "title": "Ghost bikes"
     },
     "grb": {
-        "description": "This theme is an attempt to help automating the GRB import.<br/>Note that this is very hacky and 'steals' the GRB data from an external site; in order to do this, you need to install and activate <a href='https://addons.mozilla.org/en-US/firefox/addon/cors-everywhere/'>this firefox extension</a> for it to work.",
+        "description": "This theme is an attempt to help automating the GRB import.",
         "layers": {
             "1": {
                 "tagRenderings": {