diff --git a/package.json b/package.json
index d94cc1494e..de533bc54d 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,6 @@
     "@babel/register": "^7.7.4",
     "@babel/runtime": "^7.7.6",
     "@types/jest": "^25.2.1",
-    "@types/modernizr": "^3.5.3",
     "@types/react": "16.9",
     "@types/react-dom": "^16.9.4",
     "autoprefixer": "^9.7.3",
diff --git a/src/@types/global.d.ts b/src/@types/global.d.ts
index 6a5adec6d6..2e2f35f602 100644
--- a/src/@types/global.d.ts
+++ b/src/@types/global.d.ts
@@ -14,25 +14,15 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import "modernizr";
+import "matrix-react-sdk/src/@types/global";
 import {Renderer} from "react-dom";
 
 declare global {
     interface Window {
-        Modernizr: ModernizrAPI & FeatureDetects;
-        Olm: {
-            init: () => Promise<void>;
-        };
-
         mxSendRageshake: (text: string, withLogs?: boolean) => void;
         matrixChat: ReturnType<Renderer>;
 
         // electron-only
         ipcRenderer: any;
     }
-
-    // workaround for https://github.com/microsoft/TypeScript/issues/30933
-    interface ObjectConstructor {
-        fromEntries?(xs: [string|number|symbol, any][]): object
-    }
 }
diff --git a/src/vector/url_utils.ts b/src/vector/url_utils.ts
index 6ebabfc4d1..d5efcdaaba 100644
--- a/src/vector/url_utils.ts
+++ b/src/vector/url_utils.ts
@@ -14,14 +14,12 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import {urlSearchParamsToObject} from "matrix-react-sdk/src/utils/UrlUtils";
+
 interface IParamsObject {
     [key: string]: string;
 }
 
-function searchParamsToObject(params: URLSearchParams) {
-    return <IParamsObject>Object.fromEntries([...params.entries()]);
-}
-
 // We want to support some name / value pairs in the fragment
 // so we're re-using query string like format
 //
@@ -42,11 +40,11 @@ export function parseQsFromFragment(location: Location) {
     };
 
     if (hashparts.length > 1) {
-        result.params = searchParamsToObject(new URLSearchParams(hashparts[1]));
+        result.params = urlSearchParamsToObject<IParamsObject>(new URLSearchParams(hashparts[1]));
     }
     return result;
 }
 
 export function parseQs(location: Location) {
-    return searchParamsToObject(new URLSearchParams(location.search));
+    return urlSearchParamsToObject<IParamsObject>(new URLSearchParams(location.search));
 }