diff --git a/Packages-react/ohif-core b/Packages-react/ohif-core
index 8b3a80a85..847511a52 160000
--- a/Packages-react/ohif-core
+++ b/Packages-react/ohif-core
@@ -1 +1 @@
-Subproject commit 8b3a80a85a466924cb1bdcb9450408130ebec9a0
+Subproject commit 847511a526739d20b9178878989ae8593800e031
diff --git a/Packages-react/ohif-viewer/src/App.js b/Packages-react/ohif-viewer/src/App.js
index c92515706..9b2611033 100644
--- a/Packages-react/ohif-viewer/src/App.js
+++ b/Packages-react/ohif-viewer/src/App.js
@@ -11,7 +11,6 @@ import WhiteLabellingContext from './WhiteLabellingContext';
 import OHIFCornerstoneExtension from 'ohif-cornerstone-extension';
 import OHIFDicomPDFExtension from 'ohif-dicom-pdf-extension';
 import OHIFDicomMicroscopyExtension from 'ohif-dicom-microscopy-extension';
-import { loadState, saveState } from './redux/localStorageState.js';
 import {
   loadUser,
   OidcProvider,
@@ -19,21 +18,22 @@ import {
   reducer as oidcReducer
 } from 'redux-oidc';
 import cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader';
-import ExtensionManager from './ExtensionManager';
+
+const { ExtensionManager } = OHIF.extensions;
 
 //import Icons from "./images/icons.svg"
 
 const Icons = '/icons.svg';
 
-let reducers = OHIF.redux.reducers;
+const { reducers, localStorage } = OHIF.redux;
 reducers.ui = ui;
 reducers.oidc = oidcReducer;
 
 const combined = combineReducers(reducers);
-const store = createStore(combined, loadState());
+const store = createStore(combined, localStorage.loadState());
 
 store.subscribe(() => {
-  saveState({
+  localStorage.saveState({
     preferences: store.getState().preferences
   });
 });
diff --git a/Packages-react/ohif-viewer/src/ExtensionManager.js b/Packages-react/ohif-viewer/src/ExtensionManager.js
deleted file mode 100644
index 130e0ec49..000000000
--- a/Packages-react/ohif-viewer/src/ExtensionManager.js
+++ /dev/null
@@ -1,38 +0,0 @@
-import OHIF from 'ohif-core';
-
-export default class ExtensionManager {
-  static registerExtensions(store, extensions) {
-    extensions.forEach(extension => {
-      ExtensionManager.registerExtension(store, extension);
-    });
-  }
-
-  static registerExtension(store, extension) {
-    /**
-     *   TODO:
-     * - Use this function for checking extensions definition and throw errors early/ignore extension if format is not conformant or any required stuff is missing
-     * - Check uniqueness of extension id
-     * - Id Management: SopClassHandlers currently refer to viewport module by id; setting the extension id as viewport module id is a workaround for now
-     * - Add loading of panel and toolbar modules */
-    let viewportModule = extension.getViewportModule();
-    let sopClassHandler = extension.getSopClassHandler();
-    if (viewportModule) {
-      store.dispatch(
-        OHIF.redux.actions.addPlugin({
-          id: extension.getExtensionId(),
-          type: 'viewport',
-          component: viewportModule
-        })
-      );
-    }
-    if (sopClassHandler) {
-      store.dispatch(
-        OHIF.redux.actions.addPlugin({
-          id: extension.getExtensionId() + '_sopClass_handler',
-          type: 'sopClassHandler',
-          component: sopClassHandler
-        })
-      );
-    }
-  }
-}
diff --git a/Packages-react/ohif-viewer/src/components/ConnectedExampleViewportPlugin.js b/Packages-react/ohif-viewer/src/components/ConnectedExampleViewportPlugin.js
deleted file mode 100644
index 9e450441d..000000000
--- a/Packages-react/ohif-viewer/src/components/ConnectedExampleViewportPlugin.js
+++ /dev/null
@@ -1,21 +0,0 @@
-import { connect } from 'react-redux';
-import ExampleViewportPlugin from './ExampleViewportPlugin';
-
-// We don't really need Redux to do this, this is just an example
-const mapStateToProps = (state, ownProps) => {
-  const { displaySet } = ownProps.viewportData;
-  const { studyInstanceUid, seriesInstanceUid } = displaySet;
-
-  return {
-    studyInstanceUid,
-    seriesInstanceUid,
-    displaySet
-  };
-};
-
-const ConnectedExampleViewportPlugin = connect(
-  mapStateToProps,
-  null
-)(ExampleViewportPlugin);
-
-export default ConnectedExampleViewportPlugin;
diff --git a/Packages-react/ohif-viewer/src/components/ExampleViewportPlugin.js b/Packages-react/ohif-viewer/src/components/ExampleViewportPlugin.js
deleted file mode 100644
index bfd521244..000000000
--- a/Packages-react/ohif-viewer/src/components/ExampleViewportPlugin.js
+++ /dev/null
@@ -1,27 +0,0 @@
-import React, { Component } from 'react';
-import PropTypes from 'prop-types';
-
-class ExampleViewportPlugin extends Component {
-  static propTypes = {
-    studyInstanceUid: PropTypes.string.isRequired,
-    seriesInstanceUid: PropTypes.string.isRequired,
-    displaySet: PropTypes.object
-  };
-
-  static defaultProps = {
-    studyInstanceUid: '',
-    seriesInstanceUid: ''
-  };
-
-  render() {
-    return (
-      <div className="ExampleViewportPlugin">
-        <p>StudyInstanceUid: {this.props.studyInstanceUid}</p>
-        <p>SeriesInstanceUid: {this.props.seriesInstanceUid}</p>
-        {JSON.stringify(this.props.displaySet)}
-      </div>
-    );
-  }
-}
-
-export default ExampleViewportPlugin;
diff --git a/Packages-react/ohif-viewer/src/config.js b/Packages-react/ohif-viewer/src/config.js
index e734099e3..78a3a52da 100644
--- a/Packages-react/ohif-viewer/src/config.js
+++ b/Packages-react/ohif-viewer/src/config.js
@@ -24,34 +24,6 @@ OHIF.external.cornerstone = cornerstone;
 OHIF.external.cornerstoneMath = cornerstoneMath;
 OHIF.external.cornerstoneWADOImageLoader = cornerstoneWADOImageLoader;
 
-// TODO: Is there a better way to guess ROOT_URL?
-//let ROOT_URL = homepage;
-
-// If the page we are on is not a subset of the expected homepage
-// provided in the package.json file, we might be doing local development.
-// In this case, set the base URL to the current location's origin.
-/*if (homepage.includes(window.location.origin) === false) {
-    ROOT_URL = window.location.origin;
-}
-
-const config = {
-    maxWebWorkers: Math.max(navigator.hardwareConcurrency - 1, 1),
-    startWebWorkersOnDemand: true,
-    webWorkerPath: ROOT_URL + '/cornerstoneWADOImageLoaderWebWorker.min.js',
-    taskConfiguration: {
-        decodeTask: {
-            loadCodecsOnStartup: true,
-            initializeCodecsOnStartup: false,
-            codecsPath: ROOT_URL + '/cornerstoneWADOImageLoaderCodecs.min.js',
-            usePDFJS: false,
-            strict: false
-        }
-    }
-};
-
-cornerstoneWADOImageLoader.webWorkerManager.initialize(config);
-*/
-
 OHIF.user.getAccessToken = () => {
   // TODO: Get the Redux store from somewhere else
   const state = window.store.getState();
diff --git a/Packages-react/ohif-viewer/src/connectedComponents/OHIFComponentPlugin.js b/Packages-react/ohif-viewer/src/connectedComponents/OHIFComponentPlugin.js
deleted file mode 100644
index 6dc5310b6..000000000
--- a/Packages-react/ohif-viewer/src/connectedComponents/OHIFComponentPlugin.js
+++ /dev/null
@@ -1,15 +0,0 @@
-import React from 'react';
-import PropTypes from "prop-types";
-
-function OHIFComponentPlugin(props) {
-  return (<React.Fragment>{props.children}</React.Fragment>);
-}
-
-OHIFComponentPlugin.propTypes = {
-  id: PropTypes.string.isRequired,
-  init: PropTypes.func.isRequired,
-  destroy: PropTypes.func.isRequired,
-  children: PropTypes.node
-};
-
-export default OHIFComponentPlugin;
diff --git a/Packages-react/ohif-viewer/src/connectedComponents/ViewerRetrieveStudyData.js b/Packages-react/ohif-viewer/src/connectedComponents/ViewerRetrieveStudyData.js
index 600c3c0d6..538b01e51 100644
--- a/Packages-react/ohif-viewer/src/connectedComponents/ViewerRetrieveStudyData.js
+++ b/Packages-react/ohif-viewer/src/connectedComponents/ViewerRetrieveStudyData.js
@@ -1,56 +1,57 @@
-import React, {Component} from "react";
-import PropTypes from "prop-types";
+import React, { Component } from 'react';
+import PropTypes from 'prop-types';
 import OHIF from 'ohif-core';
-import Viewer from "./Viewer.js";
+import Viewer from './Viewer.js';
 
 const { createDisplaySets } = OHIF.utils;
 
 class ViewerRetrieveStudyData extends Component {
-    static propTypes = {
-        studyInstanceUids: PropTypes.array.isRequired,
-        seriesInstanceUids: PropTypes.array,
-        server: PropTypes.object
-    };
+  static propTypes = {
+    studyInstanceUids: PropTypes.array.isRequired,
+    seriesInstanceUids: PropTypes.array,
+    server: PropTypes.object
+  };
 
-    state = {
-        studies: null,
-        error: null
-    }
+  state = {
+    studies: null,
+    error: null
+  };
 
-    componentDidMount() {
-        // TODO: Avoid using timepoints here
-        //const params = { studyInstanceUids, seriesInstanceUids, timepointId, timepointsFilter={} };
-        const { studyInstanceUids, seriesInstanceUids, server } = this.props;
-        const promise = OHIF.studies.retrieveStudiesMetadata(server, studyInstanceUids, seriesInstanceUids)
+  componentDidMount() {
+    const { studyInstanceUids, seriesInstanceUids, server } = this.props;
+    const promise = OHIF.studies.retrieveStudiesMetadata(
+      server,
+      studyInstanceUids,
+      seriesInstanceUids
+    );
 
-        // Render the viewer when the data is ready
-        promise.then(studies => {
-            const updatedStudies = createDisplaySets(studies);
+    // Render the viewer when the data is ready
+    promise
+      .then(studies => {
+        const updatedStudies = createDisplaySets(studies);
 
-            this.setState({
-                studies: updatedStudies,
-            });
-        }).catch(error => {
-            this.setState({
-                error: true,
-            });
-
-            throw new Error(error);
+        this.setState({
+          studies: updatedStudies
+        });
+      })
+      .catch(error => {
+        this.setState({
+          error: true
         });
 
+        throw new Error(error);
+      });
+  }
+
+  render() {
+    if (this.state.error) {
+      return <div>Error: {JSON.stringify(this.state.error)}</div>;
+    } else if (!this.state.studies) {
+      return <div>Loading...</div>;
     }
 
-    render() {
-        if (this.state.error) {
-            return (<div>Error: {JSON.stringify(this.state.error)}</div>);
-        } else if (!this.state.studies) {
-            return (<div>Loading...</div>);
-        }
-
-        return (
-            <Viewer studies={this.state.studies}/>
-        );
-    }
+    return <Viewer studies={this.state.studies} />;
+  }
 }
 
 export default ViewerRetrieveStudyData;
diff --git a/Packages-react/ohif-viewer/src/redux/localStorageState.js b/Packages-react/ohif-viewer/src/redux/localStorageState.js
deleted file mode 100644
index c774a1434..000000000
--- a/Packages-react/ohif-viewer/src/redux/localStorageState.js
+++ /dev/null
@@ -1,19 +0,0 @@
-export const loadState = () => {
-  try {
-    const serializedState = window.localStorage.getItem('state');
-    if (!serializedState) {
-      return undefined;
-    }
-
-    return JSON.parse(serializedState);
-  } catch (e) {
-    return undefined;
-  }
-};
-
-export const saveState = state => {
-  try {
-    const serializedState = JSON.stringify(state);
-    localStorage.setItem('state', serializedState);
-  } catch (e) {}
-};
diff --git a/Packages-react/ohif-viewer/src/sha.js b/Packages-react/ohif-viewer/src/sha.js
index 3e8eea16a..dbedc2200 100644
--- a/Packages-react/ohif-viewer/src/sha.js
+++ b/Packages-react/ohif-viewer/src/sha.js
@@ -1 +1 @@
-export default '22202141b8ce2fd087627fe24c0d401dc096029a';
+export default '5bb64fd9254dbd2dd152424fcf584d3a34b05c8a';