diff --git a/devtools/client/debugger/src/actions/event-listeners.js b/devtools/client/debugger/src/actions/event-listeners.js
index 0e47899bf087..4e1e41e321f7 100644
--- a/devtools/client/debugger/src/actions/event-listeners.js
+++ b/devtools/client/debugger/src/actions/event-listeners.js
@@ -4,29 +4,88 @@
 
 // @flow
 
+import { uniq, remove } from "lodash";
+
 import { asyncStore } from "../utils/prefs";
 
+import {
+  getActiveEventListeners,
+  getEventListenerExpanded,
+} from "../selectors";
+
 import type { ThunkArgs } from "./types";
-import type { EventListenerBreakpoints } from "../types";
 
-export function addEventListeners(events: EventListenerBreakpoints) {
-  return async ({ dispatch, client }: ThunkArgs) => {
-    await dispatch({
-      type: "ADD_EVENT_LISTENERS",
-      events,
-    });
-    const newList = await asyncStore.eventListenerBreakpoints;
-    client.setEventListenerBreakpoints(newList);
+async function updateBreakpoints(dispatch, client, newEvents: string[]) {
+  dispatch({ type: "UPDATE_EVENT_LISTENERS", active: newEvents });
+
+  const current = await asyncStore.eventListenerBreakpoints;
+  asyncStore.eventListenerBreakpoints = {
+    ...current,
+    active: newEvents,
+  };
+
+  client.setEventListenerBreakpoints(newEvents);
+}
+
+async function updateExpanded(dispatch, newExpanded: string[]) {
+  dispatch({
+    type: "UPDATE_EVENT_LISTENER_EXPANDED",
+    expanded: newExpanded,
+  });
+
+  const current = await asyncStore.eventListenerBreakpoints;
+  asyncStore.eventListenerBreakpoints = {
+    ...current,
+    expanded: newExpanded,
   };
 }
 
-export function removeEventListeners(events: EventListenerBreakpoints) {
-  return async ({ dispatch, client }: ThunkArgs) => {
-    await dispatch({
-      type: "REMOVE_EVENT_LISTENERS",
-      events,
-    });
-    const newList = await asyncStore.eventListenerBreakpoints;
-    client.setEventListenerBreakpoints(newList);
+export function addEventListenerBreakpoints(eventsToAdd: string[]) {
+  return async ({ dispatch, client, getState }: ThunkArgs) => {
+    const activeListenerBreakpoints = await getActiveEventListeners(getState());
+
+    const newEvents = uniq([...eventsToAdd, ...activeListenerBreakpoints]);
+
+    updateBreakpoints(dispatch, client, newEvents);
+  };
+}
+
+export function removeEventListenerBreakpoints(eventsToRemove: string[]) {
+  return async ({ dispatch, client, getState }: ThunkArgs) => {
+    const activeListenerBreakpoints = await getActiveEventListeners(getState());
+
+    const newEvents = remove(
+      activeListenerBreakpoints,
+      event => !eventsToRemove.includes(event)
+    );
+
+    updateBreakpoints(dispatch, client, newEvents);
+  };
+}
+
+export function addEventListenerExpanded(category: string) {
+  return async ({ dispatch, getState }: ThunkArgs) => {
+    const expanded = await getEventListenerExpanded(getState());
+
+    const newExpanded = uniq([...expanded, category]);
+
+    await updateExpanded(dispatch, newExpanded);
+  };
+}
+
+export function removeEventListenerExpanded(category: string) {
+  return async ({ dispatch, getState }: ThunkArgs) => {
+    const expanded = await getEventListenerExpanded(getState());
+
+    const newExpanded = expanded.filter(expand => expand != category);
+
+    updateExpanded(dispatch, newExpanded);
+  };
+}
+
+export function getEventListenerBreakpointTypes() {
+  return async ({ dispatch, client }: ThunkArgs) => {
+    const categories = await client.getEventListenerBreakpointTypes();
+    dispatch({ type: "RECEIVE_EVENT_LISTENER_TYPES", categories });
   };
 }
diff --git a/devtools/client/debugger/src/actions/types/index.js b/devtools/client/debugger/src/actions/types/index.js
index 51a110cf42c6..01296b64b8e7 100644
--- a/devtools/client/debugger/src/actions/types/index.js
+++ b/devtools/client/debugger/src/actions/types/index.js
@@ -159,6 +159,30 @@ export type {
 
 export type { panelPositionType } from "./UIAction";
 
+export type { ASTAction } from "./ASTAction";
+
+type ActiveEventListener = string;
+type EventListenerEvent = { name: string, id: ActiveEventListener };
+type EventListenerCategory = { name: string, events: EventListenerEvent[] };
+
+export type EventListenerActiveList = ActiveEventListener[];
+export type EventListenerCategoryList = EventListenerCategory[];
+export type EventListenerExpandedList = string[];
+
+export type EventListenerAction =
+  | {|
+      +type: "UPDATE_EVENT_LISTENERS",
+      +active: EventListenerActiveList,
+    |}
+  | {|
+      +type: "RECEIVE_EVENT_LISTENER_TYPES",
+      +categories: EventListenerCategoryList,
+    |}
+  | {|
+      +type: "UPDATE_EVENT_LISTENER_EXPANDED",
+      +expanded: EventListenerExpandedList,
+    |};
+
 /**
  * Actions: Source, Breakpoint, and Navigation
  *
@@ -180,4 +204,5 @@ export type Action =
   | FileTextSearchAction
   | ProjectTextSearchAction
   | DebuggeeAction
-  | SourceTreeAction;
+  | SourceTreeAction
+  | EventListenerAction;
diff --git a/devtools/client/debugger/src/client/firefox.js b/devtools/client/debugger/src/client/firefox.js
index 3d8fb32624cb..e24f96eb7bee 100644
--- a/devtools/client/debugger/src/client/firefox.js
+++ b/devtools/client/debugger/src/client/firefox.js
@@ -47,6 +47,9 @@ export async function onConnect(connection: any, actions: Object) {
     skipBreakpoints: prefs.skipPausing,
   });
 
+  // Retrieve possible event listener breakpoints
+  actions.getEventListenerBreakpointTypes();
+
   // In Firefox, we need to initially request all of the sources. This
   // usually fires off individual `newSource` notifications as the
   // debugger finds them, but there may be existing sources already in
diff --git a/devtools/client/debugger/src/client/firefox/commands.js b/devtools/client/debugger/src/client/firefox/commands.js
index 59758b83ee75..b7cf035a7f43 100644
--- a/devtools/client/debugger/src/client/firefox/commands.js
+++ b/devtools/client/debugger/src/client/firefox/commands.js
@@ -16,7 +16,6 @@ import type {
   BreakpointLocation,
   BreakpointOptions,
   PendingLocation,
-  EventListenerBreakpoints,
   Frame,
   FrameId,
   GeneratedSourceData,
@@ -36,6 +35,8 @@ import type {
   SourcesPacket,
 } from "./types";
 
+import type { EventListenerCategoryList } from "../../actions/types";
+
 let workerClients: Object;
 let threadClient: ThreadClient;
 let tabTarget: TabTarget;
@@ -361,8 +362,17 @@ function interrupt(thread: string): Promise<*> {
   return lookupThreadClient(thread).interrupt();
 }
 
-function setEventListenerBreakpoints(eventTypes: EventListenerBreakpoints) {
-  // TODO: Figure out what sendpoint we want to hit
+async function setEventListenerBreakpoints(ids: string[]) {
+  await threadClient.setActiveEventBreakpoints(ids);
+  await forEachWorkerThread(thread => thread.setActiveEventBreakpoints(ids));
+}
+
+// eslint-disable-next-line
+async function getEventListenerBreakpointTypes(): Promise<
+  EventListenerCategoryList
+> {
+  const { value } = await threadClient.getAvailableEventBreakpoints();
+  return value;
 }
 
 function pauseGrip(thread: string, func: Function): ObjectClient {
@@ -525,6 +535,7 @@ const clientCommands = {
   sendPacket,
   setSkipPausing,
   setEventListenerBreakpoints,
+  getEventListenerBreakpointTypes,
   waitForWorkers,
   detachWorkers,
   hasWasmSupport,
diff --git a/devtools/client/debugger/src/client/firefox/types.js b/devtools/client/debugger/src/client/firefox/types.js
index 8f87962d777c..3c89c5041aec 100644
--- a/devtools/client/debugger/src/client/firefox/types.js
+++ b/devtools/client/debugger/src/client/firefox/types.js
@@ -25,6 +25,8 @@ import type {
   Range,
 } from "../../types";
 
+import type { EventListenerCategoryList } from "../../actions/types";
+
 type URL = string;
 
 /**
@@ -369,7 +371,10 @@ export type ThreadClient = {
   actor: ActorId,
   request: (payload: Object) => Promise<*>,
   url: string,
-  setEventListenerBreakpoints: (string[]) => void,
+  setActiveEventBreakpoints: (string[]) => void,
+  getAvailableEventBreakpoints: () => Promise<{|
+    value: EventListenerCategoryList,
+  |}>,
   skipBreakpoints: boolean => Promise<{| skip: boolean |}>,
 };
 
diff --git a/devtools/client/debugger/src/client/index.js b/devtools/client/debugger/src/client/index.js
index e68801c9ec6f..e4fe19c14671 100644
--- a/devtools/client/debugger/src/client/index.js
+++ b/devtools/client/debugger/src/client/index.js
@@ -15,6 +15,7 @@ import {
   bootstrapStore,
   bootstrapWorkers,
 } from "../utils/bootstrap";
+
 import { initialBreakpointsState } from "../reducers/breakpoints";
 
 import type { Panel } from "./firefox/types";
@@ -47,7 +48,12 @@ async function loadInitialState() {
 
   const breakpoints = initialBreakpointsState(xhrBreakpoints);
 
-  return { pendingBreakpoints, tabs, breakpoints, eventListenerBreakpoints };
+  return {
+    pendingBreakpoints,
+    tabs,
+    breakpoints,
+    eventListenerBreakpoints,
+  };
 }
 
 function getClient(connection: any) {
diff --git a/devtools/client/debugger/src/components/SecondaryPanes/EventListeners.js b/devtools/client/debugger/src/components/SecondaryPanes/EventListeners.js
index be2ce126448f..ad18d6c0a01d 100644
--- a/devtools/client/debugger/src/components/SecondaryPanes/EventListeners.js
+++ b/devtools/client/debugger/src/components/SecondaryPanes/EventListeners.js
@@ -9,141 +9,121 @@ import classnames from "classnames";
 
 import { connect } from "../../utils/connect";
 import actions from "../../actions";
-import { getActiveEventListeners } from "../../selectors";
+import {
+  getActiveEventListeners,
+  getEventListenerBreakpointTypes,
+  getEventListenerExpanded,
+} from "../../selectors";
 
 import AccessibleImage from "../shared/AccessibleImage";
 
-import type { EventListenerBreakpoints } from "../../types";
+import type {
+  EventListenerActiveList,
+  EventListenerCategoryList,
+  EventListenerExpandedList,
+} from "../../actions/types";
 
 import "./EventListeners.css";
 
-const CATEGORIES = {
-  Mouse: ["click", "mouseover", "dblclick"],
-  Keyboard: ["keyup", "keydown"],
-};
-
 type Props = {
-  addEventListeners: typeof actions.addEventListeners,
-  removeEventListeners: typeof actions.removeEventListeners,
-  activeEventListeners: EventListenerBreakpoints,
+  categories: EventListenerCategoryList,
+  expandedCategories: EventListenerExpandedList,
+  activeEventListeners: EventListenerActiveList,
+  addEventListeners: typeof actions.addEventListenerBreakpoints,
+  removeEventListeners: typeof actions.removeEventListenerBreakpoints,
+  addEventListenerExpanded: typeof actions.addEventListenerExpanded,
+  removeEventListenerExpanded: typeof actions.removeEventListenerExpanded,
 };
 
-type State = {
-  expandedCategories: string[],
-};
-
-function getKey(category: string, eventType: string) {
-  return `${category}:${eventType}`;
-}
-
-class EventListeners extends Component<Props, State> {
-  constructor(props) {
-    super(props);
-
-    this.state = {
-      expandedCategories: [],
-    };
-  }
-
-  onCategoryToggle(category, event) {
-    const { expandedCategories } = this.state;
+class EventListeners extends Component<Props> {
+  onCategoryToggle(category) {
+    const {
+      expandedCategories,
+      removeEventListenerExpanded,
+      addEventListenerExpanded,
+    } = this.props;
 
     if (expandedCategories.includes(category)) {
-      this.setState({
-        expandedCategories: expandedCategories.filter(
-          eventCategory => eventCategory !== category
-        ),
-      });
+      removeEventListenerExpanded(category);
     } else {
-      this.setState({
-        expandedCategories: [...expandedCategories, category],
-      });
+      addEventListenerExpanded(category);
     }
   }
 
   onCategoryClick(category, isChecked) {
     const { addEventListeners, removeEventListeners } = this.props;
-    const events = CATEGORIES[category].map(eventType =>
-      getKey(category, eventType)
-    );
+    const eventsIds = category.events.map(event => event.id);
 
     if (isChecked) {
-      addEventListeners(events);
+      addEventListeners(eventsIds);
     } else {
-      removeEventListeners(events);
+      removeEventListeners(eventsIds);
     }
   }
 
-  onEventTypeClick(eventType, isChecked) {
+  onEventTypeClick(eventId, isChecked) {
     const { addEventListeners, removeEventListeners } = this.props;
     if (isChecked) {
-      addEventListeners([eventType]);
+      addEventListeners([eventId]);
     } else {
-      removeEventListeners([eventType]);
+      removeEventListeners([eventId]);
     }
   }
 
   renderCategoryHeading(category) {
-    const { expandedCategories } = this.state;
-    const { activeEventListeners } = this.props;
+    const { activeEventListeners, expandedCategories } = this.props;
+    const { events } = category;
 
-    const eventTypes = CATEGORIES[category];
-
-    const expanded = expandedCategories.includes(category);
-    const checked = eventTypes.every(eventType =>
-      activeEventListeners.includes(getKey(category, eventType))
-    );
+    const expanded = expandedCategories.includes(category.name);
+    const checked = events.every(({ id }) => activeEventListeners.includes(id));
     const indeterminate =
-      !checked &&
-      eventTypes.some(eventType =>
-        activeEventListeners.includes(getKey(category, eventType))
-      );
+      !checked && events.some(({ id }) => activeEventListeners.includes(id));
 
     return (
       <div className="event-listener-header">
         <button
           className="event-listener-expand"
-          onClick={e => this.onCategoryToggle(category, e)}
+          onClick={() => this.onCategoryToggle(category.name)}
         >
           <AccessibleImage className={classnames("arrow", { expanded })} />
         </button>
         <label className="event-listener-label">
           <input
             type="checkbox"
-            value={category}
+            value={category.name}
             onChange={e => this.onCategoryClick(category, e.target.checked)}
             checked={checked}
             ref={el => el && (el.indeterminate = indeterminate)}
           />
-          <span className="event-listener-category">{category}</span>
+          <span className="event-listener-category">{category.name}</span>
         </label>
       </div>
     );
   }
 
   renderCategoryListing(category) {
-    const { activeEventListeners } = this.props;
-    const { expandedCategories } = this.state;
+    const { activeEventListeners, expandedCategories } = this.props;
 
-    const expanded = expandedCategories.includes(category);
+    const expanded = expandedCategories.includes(category.name);
     if (!expanded) {
       return null;
     }
 
     return (
       <ul>
-        {CATEGORIES[category].map(eventType => {
-          const key = getKey(category, eventType);
+        {category.events.map(event => {
           return (
-            <li className="event-listener-event" key={key}>
+            <li className="event-listener-event" key={event.id}>
               <label className="event-listener-label">
                 <input
                   type="checkbox"
-                  value={key}
-                  onChange={e => this.onEventTypeClick(key, e.target.checked)}
-                  checked={activeEventListeners.includes(key)}
+                  value={event.id}
+                  onChange={e =>
+                    this.onEventTypeClick(event.id, e.target.checked)
+                  }
+                  checked={activeEventListeners.includes(event.id)}
                 />
-                <span className="event-listener-name">{eventType}</span>
+                <span className="event-listener-name">{event.name}</span>
               </label>
             </li>
           );
@@ -153,12 +133,14 @@ class EventListeners extends Component<Props, State> {
   }
 
   render() {
+    const { categories } = this.props;
+
     return (
       <div className="event-listeners-content">
         <ul className="event-listeners-list">
-          {Object.keys(CATEGORIES).map(category => {
+          {categories.map((category, index) => {
             return (
-              <li className="event-listener-group" key={category}>
+              <li className="event-listener-group" key={index}>
                 {this.renderCategoryHeading(category)}
                 {this.renderCategoryListing(category)}
               </li>
@@ -170,14 +152,20 @@ class EventListeners extends Component<Props, State> {
   }
 }
 
-const mapStateToProps = state => ({
-  activeEventListeners: getActiveEventListeners(state),
-});
+const mapStateToProps = state => {
+  return {
+    activeEventListeners: getActiveEventListeners(state),
+    categories: getEventListenerBreakpointTypes(state),
+    expandedCategories: getEventListenerExpanded(state),
+  };
+};
 
 export default connect(
   mapStateToProps,
   {
-    addEventListeners: actions.addEventListeners,
-    removeEventListeners: actions.removeEventListeners,
+    addEventListeners: actions.addEventListenerBreakpoints,
+    removeEventListeners: actions.removeEventListenerBreakpoints,
+    addEventListenerExpanded: actions.addEventListenerExpanded,
+    removeEventListenerExpanded: actions.removeEventListenerExpanded,
   }
 )(EventListeners);
diff --git a/devtools/client/debugger/src/components/SecondaryPanes/tests/EventListeners.spec.js b/devtools/client/debugger/src/components/SecondaryPanes/tests/EventListeners.spec.js
new file mode 100644
index 000000000000..8d837ac6412c
--- /dev/null
+++ b/devtools/client/debugger/src/components/SecondaryPanes/tests/EventListeners.spec.js
@@ -0,0 +1,82 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import React from "react";
+import { shallow } from "enzyme";
+import EventListeners from "../EventListeners";
+
+function getCategories() {
+  return [
+    {
+      name: "Category 1",
+      events: [
+        { name: "Subcategory 1", id: "category1.subcategory1" },
+        { name: "Subcategory 2", id: "category1.subcategory2" },
+      ],
+    },
+    {
+      name: "Category 2",
+      events: [
+        { name: "Subcategory 3", id: "category2.subcategory1" },
+        { name: "Subcategory 4", id: "category2.subcategory2" },
+      ],
+    },
+  ];
+}
+
+function generateDefaults(overrides = {}) {
+  const defaults = {
+    activeEventListeners: [],
+    expandedCategories: [],
+    categories: [],
+  };
+
+  return { ...defaults, ...overrides };
+}
+
+function render(overrides = {}) {
+  const props = generateDefaults(overrides);
+  // $FlowIgnore
+  const component = shallow(<EventListeners.WrappedComponent {...props} />);
+  return { component, props };
+}
+
+describe("EventListeners", () => {
+  it("should render", async () => {
+    const { component } = render();
+    expect(component).toMatchSnapshot();
+  });
+
+  it("should render categories appropriately", async () => {
+    const props = {
+      ...generateDefaults(),
+      categories: getCategories(),
+    };
+    const { component } = render(props);
+    expect(component).toMatchSnapshot();
+  });
+
+  it("should render expanded categories appropriately", async () => {
+    const props = {
+      ...generateDefaults(),
+      categories: getCategories(),
+      expandedCategories: ["Category 2"],
+    };
+    const { component } = render(props);
+    expect(component).toMatchSnapshot();
+  });
+
+  it("should render checked subcategories appropriately", async () => {
+    const props = {
+      ...generateDefaults(),
+      categories: getCategories(),
+      activeEventListeners: ["category1.subcategory2"],
+      expandedCategories: ["Category 1"],
+    };
+    const { component } = render(props);
+    expect(component).toMatchSnapshot();
+  });
+});
diff --git a/devtools/client/debugger/src/components/SecondaryPanes/tests/__snapshots__/EventListeners.spec.js.snap b/devtools/client/debugger/src/components/SecondaryPanes/tests/__snapshots__/EventListeners.spec.js.snap
new file mode 100644
index 000000000000..02869aa02edd
--- /dev/null
+++ b/devtools/client/debugger/src/components/SecondaryPanes/tests/__snapshots__/EventListeners.spec.js.snap
@@ -0,0 +1,320 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`EventListeners should render 1`] = `
+<div
+  className="event-listeners-content"
+>
+  <ul
+    className="event-listeners-list"
+  />
+</div>
+`;
+
+exports[`EventListeners should render categories appropriately 1`] = `
+<div
+  className="event-listeners-content"
+>
+  <ul
+    className="event-listeners-list"
+  >
+    <li
+      className="event-listener-group"
+      key="0"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 1"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 1
+          </span>
+        </label>
+      </div>
+    </li>
+    <li
+      className="event-listener-group"
+      key="1"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 2"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 2
+          </span>
+        </label>
+      </div>
+    </li>
+  </ul>
+</div>
+`;
+
+exports[`EventListeners should render checked subcategories appropriately 1`] = `
+<div
+  className="event-listeners-content"
+>
+  <ul
+    className="event-listeners-list"
+  >
+    <li
+      className="event-listener-group"
+      key="0"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow expanded"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 1"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 1
+          </span>
+        </label>
+      </div>
+      <ul>
+        <li
+          className="event-listener-event"
+          key="category1.subcategory1"
+        >
+          <label
+            className="event-listener-label"
+          >
+            <input
+              checked={false}
+              onChange={[Function]}
+              type="checkbox"
+              value="category1.subcategory1"
+            />
+            <span
+              className="event-listener-name"
+            >
+              Subcategory 1
+            </span>
+          </label>
+        </li>
+        <li
+          className="event-listener-event"
+          key="category1.subcategory2"
+        >
+          <label
+            className="event-listener-label"
+          >
+            <input
+              checked={true}
+              onChange={[Function]}
+              type="checkbox"
+              value="category1.subcategory2"
+            />
+            <span
+              className="event-listener-name"
+            >
+              Subcategory 2
+            </span>
+          </label>
+        </li>
+      </ul>
+    </li>
+    <li
+      className="event-listener-group"
+      key="1"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 2"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 2
+          </span>
+        </label>
+      </div>
+    </li>
+  </ul>
+</div>
+`;
+
+exports[`EventListeners should render expanded categories appropriately 1`] = `
+<div
+  className="event-listeners-content"
+>
+  <ul
+    className="event-listeners-list"
+  >
+    <li
+      className="event-listener-group"
+      key="0"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 1"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 1
+          </span>
+        </label>
+      </div>
+    </li>
+    <li
+      className="event-listener-group"
+      key="1"
+    >
+      <div
+        className="event-listener-header"
+      >
+        <button
+          className="event-listener-expand"
+          onClick={[Function]}
+        >
+          <AccessibleImage
+            className="arrow expanded"
+          />
+        </button>
+        <label
+          className="event-listener-label"
+        >
+          <input
+            checked={false}
+            onChange={[Function]}
+            type="checkbox"
+            value="Category 2"
+          />
+          <span
+            className="event-listener-category"
+          >
+            Category 2
+          </span>
+        </label>
+      </div>
+      <ul>
+        <li
+          className="event-listener-event"
+          key="category2.subcategory1"
+        >
+          <label
+            className="event-listener-label"
+          >
+            <input
+              checked={false}
+              onChange={[Function]}
+              type="checkbox"
+              value="category2.subcategory1"
+            />
+            <span
+              className="event-listener-name"
+            >
+              Subcategory 3
+            </span>
+          </label>
+        </li>
+        <li
+          className="event-listener-event"
+          key="category2.subcategory2"
+        >
+          <label
+            className="event-listener-label"
+          >
+            <input
+              checked={false}
+              onChange={[Function]}
+              type="checkbox"
+              value="category2.subcategory2"
+            />
+            <span
+              className="event-listener-name"
+            >
+              Subcategory 4
+            </span>
+          </label>
+        </li>
+      </ul>
+    </li>
+  </ul>
+</div>
+`;
diff --git a/devtools/client/debugger/src/reducers/event-listeners.js b/devtools/client/debugger/src/reducers/event-listeners.js
index 41da38eb09bf..e7349e38dbdc 100644
--- a/devtools/client/debugger/src/reducers/event-listeners.js
+++ b/devtools/client/debugger/src/reducers/event-listeners.js
@@ -4,45 +4,61 @@
 
 // @flow
 
-import { uniq } from "lodash";
+import type { State } from "./types";
+import type {
+  EventListenerAction,
+  EventListenerActiveList,
+  EventListenerCategoryList,
+  EventListenerExpandedList,
+} from "../actions/types";
 
-import { asyncStore } from "../utils/prefs";
-import type { EventListenerBreakpoints } from "../types";
+export type EventListenersState = {
+  active: EventListenerActiveList,
+  categories: EventListenerCategoryList,
+  expanded: EventListenerExpandedList,
+};
 
-type OuterState = { eventListenerBreakpoints: EventListenerBreakpoints };
+export function initialEventListenerState(): EventListenersState {
+  return {
+    active: [],
+    categories: [],
+    expanded: [],
+  };
+}
 
-function update(state: EventListenerBreakpoints = [], action: any) {
+function update(
+  state: EventListenersState = initialEventListenerState(),
+  action: EventListenerAction
+) {
   switch (action.type) {
-    case "ADD_EVENT_LISTENERS":
-      return updateEventTypes("add", state, action.events);
+    case "UPDATE_EVENT_LISTENERS":
+      return { ...state, active: action.active };
 
-    case "REMOVE_EVENT_LISTENERS":
-      return updateEventTypes("remove", state, action.events);
+    case "RECEIVE_EVENT_LISTENER_TYPES":
+      return { ...state, categories: action.categories };
+
+    case "UPDATE_EVENT_LISTENER_EXPANDED":
+      return { ...state, expanded: action.expanded };
 
     default:
       return state;
   }
 }
 
-function updateEventTypes(
-  addOrRemove: string,
-  currentEvents: EventListenerBreakpoints,
-  events: EventListenerBreakpoints
-): EventListenerBreakpoints {
-  let newEventListeners;
-
-  if (addOrRemove === "add") {
-    newEventListeners = uniq([...currentEvents, ...events]);
-  } else {
-    newEventListeners = currentEvents.filter(event => !events.includes(event));
-  }
-
-  asyncStore.eventListenerBreakpoints = newEventListeners;
-  return newEventListeners;
+export function getActiveEventListeners(state: State): EventListenerActiveList {
+  return state.eventListenerBreakpoints.active;
 }
 
-export function getActiveEventListeners(state: OuterState) {
-  return state.eventListenerBreakpoints;
+export function getEventListenerBreakpointTypes(
+  state: State
+): EventListenerCategoryList {
+  return state.eventListenerBreakpoints.categories;
+}
+
+export function getEventListenerExpanded(
+  state: State
+): EventListenerExpandedList {
+  return state.eventListenerBreakpoints.expanded;
 }
 
 export default update;
diff --git a/devtools/client/debugger/src/reducers/types.js b/devtools/client/debugger/src/reducers/types.js
index 97d9e3de5a9f..0abc8d955b09 100644
--- a/devtools/client/debugger/src/reducers/types.js
+++ b/devtools/client/debugger/src/reducers/types.js
@@ -24,11 +24,13 @@ import type { SourceActorsState } from "./source-actors";
 import type { TabList } from "./tabs";
 import type { UIState } from "./ui";
 import type { QuickOpenState } from "./quick-open";
+import type { EventListenersState } from "./event-listeners";
 
 export type State = {
   ast: ASTState,
   breakpoints: BreakpointsState,
   expressions: Record<ExpressionState>,
+  eventListenerBreakpoints: EventListenersState,
   debuggee: DebuggeeState,
   fileSearch: Record<FileSearchState>,
   pause: PauseState,
diff --git a/devtools/client/debugger/src/utils/prefs.js b/devtools/client/debugger/src/utils/prefs.js
index 1bb248d78cf0..8f4634331764 100644
--- a/devtools/client/debugger/src/utils/prefs.js
+++ b/devtools/client/debugger/src/utils/prefs.js
@@ -12,7 +12,7 @@ import { asyncStoreHelper } from "./asyncStoreHelper";
 // Schema version to bump when the async store format has changed incompatibly
 // and old stores should be cleared. This needs to match the prefs schema
 // version in devtools/client/preferences/debugger.js.
-const prefsSchemaVersion = "1.0.9";
+const prefsSchemaVersion = "1.0.10";
 const pref = Services.pref;
 
 if (isDevelopment()) {
@@ -134,7 +134,7 @@ export const asyncStore = asyncStoreHelper("debugger", {
   pendingBreakpoints: ["pending-breakpoints", {}],
   tabs: ["tabs", []],
   xhrBreakpoints: ["xhr-breakpoints", []],
-  eventListenerBreakpoints: ["event-listener-breakpoints", []],
+  eventListenerBreakpoints: ["event-listener-breakpoints", undefined],
 });
 
 export function verifyPrefSchema() {
@@ -143,6 +143,7 @@ export function verifyPrefSchema() {
     asyncStore.pendingBreakpoints = {};
     asyncStore.tabs = [];
     asyncStore.xhrBreakpoints = [];
+    asyncStore.eventListenerBreakpoints = undefined;
     prefs.debuggerPrefsSchemaVersion = prefsSchemaVersion;
   }
 }
diff --git a/devtools/client/preferences/debugger.js b/devtools/client/preferences/debugger.js
index 8cfde1502e97..56f56ebdbec4 100644
--- a/devtools/client/preferences/debugger.js
+++ b/devtools/client/preferences/debugger.js
@@ -20,7 +20,7 @@ pref("devtools.debugger.workers", false);
 
 // The default Debugger UI settings
 // This schema version needs to match that in devtools/client/debugger/src/utils/prefs.js.
-pref("devtools.debugger.prefs-schema-version", "1.0.9");
+pref("devtools.debugger.prefs-schema-version", "1.0.10");
 pref("devtools.debugger.ui.panes-workers-and-sources-width", 200);
 pref("devtools.debugger.ui.panes-instruments-width", 300);
 pref("devtools.debugger.ui.panes-visible-on-startup", false);
@@ -46,7 +46,6 @@ pref("devtools.debugger.tabsBlackBoxed", "[]");
 pref("devtools.debugger.pending-selected-location", "{}");
 pref("devtools.debugger.pending-breakpoints", "{}");
 pref("devtools.debugger.expressions", "[]");
-pref("devtools.debugger.event-listener-breakpoints", "[]");
 pref("devtools.debugger.file-search-case-sensitive", false);
 pref("devtools.debugger.file-search-whole-word", false);
 pref("devtools.debugger.file-search-regex-match", false);