diff --git a/devtools/client/debugger/src/actions/sources/select.js b/devtools/client/debugger/src/actions/sources/select.js
index 8e4fd3339b85..8b8ad209610a 100644
--- a/devtools/client/debugger/src/actions/sources/select.js
+++ b/devtools/client/debugger/src/actions/sources/select.js
@@ -16,13 +16,12 @@ import { getSourcesForTabs } from "../../reducers/tabs";
 import { setSymbols } from "./symbols";
 import { setInScopeLines } from "../ast";
 import { closeActiveSearch, updateActiveFileSearch } from "../ui";
-import { isFulfilled } from "../../utils/async-value";
 import { togglePrettyPrint } from "./prettyPrint";
 import { addTab, closeTab } from "../tabs";
 import { loadSourceText } from "./loadSourceText";
 
 import { prefs } from "../../utils/prefs";
-import { shouldPrettyPrint, isMinified } from "../../utils/source";
+import { isMinified } from "../../utils/source";
 import { createLocation } from "../../utils/location";
 import { mapLocation } from "../../utils/source-maps";
 
@@ -33,6 +32,7 @@ import {
   getActiveSearch,
   getSelectedLocation,
   getSelectedSource,
+  canPrettyPrintSource,
 } from "../../selectors";
 
 import type {
@@ -169,19 +169,12 @@ export function selectLocation(
       return;
     }
     const sourceWithContent = getSourceWithContent(getState(), source.id);
-    const sourceContent =
-      sourceWithContent.content && isFulfilled(sourceWithContent.content)
-        ? sourceWithContent.content.value
-        : null;
 
     if (
       keepContext &&
       prefs.autoPrettyPrint &&
       !getPrettySource(getState(), loadedSource.id) &&
-      shouldPrettyPrint(
-        loadedSource,
-        sourceContent || { type: "text", value: "", contentType: undefined }
-      ) &&
+      canPrettyPrintSource(getState(), loadedSource.id) &&
       isMinified(sourceWithContent)
     ) {
       await dispatch(togglePrettyPrint(cx, loadedSource.id));
diff --git a/devtools/client/debugger/src/components/Editor/EditorMenu.js b/devtools/client/debugger/src/components/Editor/EditorMenu.js
index 48c1a4335bde..1a87d4ab1cab 100644
--- a/devtools/client/debugger/src/components/Editor/EditorMenu.js
+++ b/devtools/client/debugger/src/components/Editor/EditorMenu.js
@@ -7,13 +7,16 @@
 import { Component } from "react";
 import { connect } from "../../utils/connect";
 import { showMenu } from "devtools-contextmenu";
+import { isOriginalId } from "devtools-source-map";
 
 import { getSourceLocationFromMouseEvent } from "../../utils/editor";
+import { isPretty } from "../../utils/source";
 import {
   getPrettySource,
   getIsPaused,
   getCurrentThread,
   getThreadContext,
+  isSourceWithMap,
 } from "../../selectors";
 
 import { editorMenuItems, editorItemActions } from "./menus/editor";
@@ -28,7 +31,7 @@ type Props = {
   editorActions: EditorItemActions,
   clearContextMenu: () => void,
   editor: SourceEditor,
-  hasPrettySource: boolean,
+  hasMappedLocation: boolean,
   isPaused: boolean,
   selectedSource: SourceWithContent,
 };
@@ -49,7 +52,7 @@ class EditorMenu extends Component<Props> {
       editor,
       selectedSource,
       editorActions,
-      hasPrettySource,
+      hasMappedLocation,
       isPaused,
       contextMenu: event,
     } = props;
@@ -67,7 +70,7 @@ class EditorMenu extends Component<Props> {
         cx,
         editorActions,
         selectedSource,
-        hasPrettySource,
+        hasMappedLocation,
         location,
         isPaused,
         selectionText: editor.codeMirror.getSelection().trim(),
@@ -84,7 +87,11 @@ class EditorMenu extends Component<Props> {
 const mapStateToProps = (state, props) => ({
   cx: getThreadContext(state),
   isPaused: getIsPaused(state, getCurrentThread(state)),
-  hasPrettySource: !!getPrettySource(state, props.selectedSource.id),
+  hasMappedLocation:
+    (isOriginalId(props.selectedSource.id) ||
+      isSourceWithMap(state, props.selectedSource.id) ||
+      isPretty(props.selectedSource)) &&
+    !getPrettySource(state, props.selectedSource.id),
 });
 
 const mapDispatchToProps = dispatch => ({
diff --git a/devtools/client/debugger/src/components/Editor/Footer.js b/devtools/client/debugger/src/components/Editor/Footer.js
index c7663e941903..7f1f9d4ea5bd 100644
--- a/devtools/client/debugger/src/components/Editor/Footer.js
+++ b/devtools/client/debugger/src/components/Editor/Footer.js
@@ -14,15 +14,16 @@ import {
   getContext,
 } from "../../selectors";
 
-import { isFulfilled } from "../../utils/async-value";
 import {
   isPretty,
   getFilename,
   isOriginal,
   shouldBlackbox,
 } from "../../utils/source";
-import { getGeneratedSource } from "../../reducers/sources";
-import { shouldShowPrettyPrint } from "../../utils/editor";
+import {
+  getGeneratedSource,
+  canPrettyPrintSource,
+} from "../../reducers/sources";
 
 import { PaneToggleButton } from "../shared/Button";
 import AccessibleImage from "../shared/AccessibleImage";
@@ -42,6 +43,7 @@ type Props = {
   mappedSource: Source,
   endPanelCollapsed: boolean,
   horizontal: boolean,
+  canPrettyPrint: boolean,
   togglePrettyPrint: typeof actions.togglePrettyPrint,
   toggleBlackBox: typeof actions.toggleBlackBox,
   jumpToMappedLocation: typeof actions.jumpToMappedLocation,
@@ -84,7 +86,12 @@ class SourceFooter extends PureComponent<Props, State> {
   }
 
   prettyPrintButton() {
-    const { cx, selectedSource, togglePrettyPrint } = this.props;
+    const {
+      cx,
+      selectedSource,
+      canPrettyPrint,
+      togglePrettyPrint,
+    } = this.props;
 
     if (!selectedSource) {
       return;
@@ -98,16 +105,7 @@ class SourceFooter extends PureComponent<Props, State> {
       );
     }
 
-    const sourceContent =
-      selectedSource.content && isFulfilled(selectedSource.content)
-        ? selectedSource.content.value
-        : null;
-    if (
-      !shouldShowPrettyPrint(
-        selectedSource,
-        sourceContent || { type: "text", value: "", contentType: undefined }
-      )
-    ) {
+    if (!canPrettyPrint) {
       return;
     }
 
@@ -280,6 +278,9 @@ const mapStateToProps = state => {
       selectedSource ? selectedSource.id : null
     ),
     endPanelCollapsed: getPaneCollapse(state, "end"),
+    canPrettyPrint: selectedSource
+      ? canPrettyPrintSource(state, selectedSource.id)
+      : false,
   };
 };
 
diff --git a/devtools/client/debugger/src/components/Editor/menus/editor.js b/devtools/client/debugger/src/components/Editor/menus/editor.js
index 9157ce0f6f7f..ae7034eda58e 100644
--- a/devtools/client/debugger/src/components/Editor/menus/editor.js
+++ b/devtools/client/debugger/src/components/Editor/menus/editor.js
@@ -9,7 +9,6 @@ import { isOriginalId } from "devtools-source-map";
 
 import { copyToTheClipboard } from "../../../utils/clipboard";
 import {
-  isPretty,
   getRawSourceURL,
   getFilename,
   shouldBlackbox,
@@ -29,10 +28,6 @@ import type {
   ThreadContext,
 } from "../../../types";
 
-function isMapped(selectedSource) {
-  return isOriginalId(selectedSource.id) || !!selectedSource.sourceMapURL;
-}
-
 export const continueToHereItem = (
   cx: ThreadContext,
   location: SourceLocation,
@@ -88,7 +83,7 @@ const jumpToMappedLocationItem = (
   cx: Context,
   selectedSource: Source,
   location: SourceLocation,
-  hasPrettySource: boolean,
+  hasMappedLocation: boolean,
   editorActions: EditorItemActions
 ) => ({
   id: "node-menu-jump",
@@ -99,8 +94,7 @@ const jumpToMappedLocationItem = (
       : L10N.getStr("original")
   ),
   accesskey: L10N.getStr("editor.jumpToMappedLocation1.accesskey"),
-  disabled:
-    (!isMapped(selectedSource) && !isPretty(selectedSource)) || hasPrettySource,
+  disabled: !hasMappedLocation,
   click: () => editorActions.jumpToMappedLocation(cx, location),
 });
 
@@ -171,7 +165,7 @@ export function editorMenuItems({
   selectedSource,
   location,
   selectionText,
-  hasPrettySource,
+  hasMappedLocation,
   isTextSelected,
   isPaused,
 }: {
@@ -180,7 +174,7 @@ export function editorMenuItems({
   selectedSource: SourceWithContent,
   location: SourceLocation,
   selectionText: string,
-  hasPrettySource: boolean,
+  hasMappedLocation: boolean,
   isTextSelected: boolean,
   isPaused: boolean,
 }) {
@@ -196,7 +190,7 @@ export function editorMenuItems({
       cx,
       selectedSource,
       location,
-      hasPrettySource,
+      hasMappedLocation,
       editorActions
     ),
     continueToHereItem(cx, location, isPaused, editorActions),
diff --git a/devtools/client/debugger/src/reducers/sources.js b/devtools/client/debugger/src/reducers/sources.js
index 93abfaf47966..f7d28b2c3efd 100644
--- a/devtools/client/debugger/src/reducers/sources.js
+++ b/devtools/client/debugger/src/reducers/sources.js
@@ -17,6 +17,8 @@ import {
   isGenerated,
   isOriginal as isOriginalSource,
   getPlainUrl,
+  isPretty,
+  isJavaScript,
 } from "../utils/source";
 import {
   createInitial,
@@ -37,7 +39,14 @@ import {
 } from "../utils/resource";
 
 import { findPosition } from "../utils/breakpoint/breakpointPositions";
-import * as asyncValue from "../utils/async-value";
+import {
+  pending,
+  fulfilled,
+  rejected,
+  asSettled,
+  isFulfilled,
+} from "../utils/async-value";
+
 import type { AsyncValue, SettledValue } from "../utils/async-value";
 import { originalToGeneratedId } from "devtools-source-map";
 import { prefs } from "../utils/prefs";
@@ -260,7 +269,7 @@ const resourceAsSourceBase = memoizeResourceShallow(
 const resourceAsSourceWithContent = memoizeResourceShallow(
   ({ content, ...source }: SourceResource): SourceWithContent => ({
     ...source,
-    content: asyncValue.asSettled(content),
+    content: asSettled(content),
   })
 );
 
@@ -417,17 +426,17 @@ function updateLoadedState(
 
   let content;
   if (action.status === "start") {
-    content = asyncValue.pending();
+    content = pending();
   } else if (action.status === "error") {
-    content = asyncValue.rejected(action.error);
+    content = rejected(action.error);
   } else if (typeof action.value.text === "string") {
-    content = asyncValue.fulfilled({
+    content = fulfilled({
       type: "text",
       value: action.value.text,
       contentType: action.value.contentType,
     });
   } else {
-    content = asyncValue.fulfilled({
+    content = fulfilled({
       type: "wasm",
       value: action.value.text,
     });
@@ -789,7 +798,7 @@ export function getSourceContent(
   id: SourceId
 ): SettledValue<SourceContent> | null {
   const { content } = getResource(state.sources.sources, id);
-  return asyncValue.asSettled(content);
+  return asSettled(content);
 }
 
 export function getSelectedSourceId(state: OuterState) {
@@ -926,6 +935,38 @@ export function canLoadSource(
   return actors.length != 0;
 }
 
+export function isSourceWithMap(
+  state: OuterState & SourceActorOuterState,
+  id: SourceId
+): boolean {
+  const source = getSource(state, id);
+  return source ? !!source.sourceMapURL : false;
+}
+
+export function canPrettyPrintSource(
+  state: OuterState & SourceActorOuterState,
+  id: SourceId
+): boolean {
+  const source: SourceWithContent = getSourceWithContent(state, id);
+  if (
+    !source ||
+    isPretty(source) ||
+    isOriginalSource(source) ||
+    (prefs.clientSourceMapsEnabled && isSourceWithMap(state, id))
+  ) {
+    return false;
+  }
+
+  const sourceContent =
+    source.content && isFulfilled(source.content) ? source.content.value : null;
+
+  if (!sourceContent || !isJavaScript(source, sourceContent)) {
+    return false;
+  }
+
+  return true;
+}
+
 export function getBreakpointPositions(
   state: OuterState
 ): BreakpointPositionsMap {
diff --git a/devtools/client/debugger/src/utils/editor/index.js b/devtools/client/debugger/src/utils/editor/index.js
index b7d3065d0cea..7ef510089af5 100644
--- a/devtools/client/debugger/src/utils/editor/index.js
+++ b/devtools/client/debugger/src/utils/editor/index.js
@@ -11,19 +11,13 @@ export * from "../ui";
 export { onMouseOver } from "./token-events";
 
 import { createEditor } from "./create-editor";
-import { shouldPrettyPrint } from "../source";
 import { findNext, findPrev } from "./source-search";
 
 import { isWasm, lineToWasmOffset, wasmOffsetToLine } from "../wasm";
 
 import type { AstLocation } from "../../workers/parser";
 import type { EditorPosition, EditorRange } from "../editor/types";
-import type {
-  SearchModifiers,
-  Source,
-  SourceContent,
-  SourceLocation,
-} from "../../types";
+import type { SearchModifiers, Source, SourceLocation } from "../../types";
 type Editor = Object;
 
 let editor: ?Editor;
@@ -63,10 +57,6 @@ export function endOperation() {
   codeMirror.endOperation();
 }
 
-export function shouldShowPrettyPrint(source: Source, content: SourceContent) {
-  return shouldPrettyPrint(source, content);
-}
-
 export function traverseResults(
   e: Event,
   ctx: any,
diff --git a/devtools/client/debugger/src/utils/editor/tests/editor.spec.js b/devtools/client/debugger/src/utils/editor/tests/editor.spec.js
index e62fa350b24d..533fe757bae3 100644
--- a/devtools/client/debugger/src/utils/editor/tests/editor.spec.js
+++ b/devtools/client/debugger/src/utils/editor/tests/editor.spec.js
@@ -5,7 +5,6 @@
 // @flow
 
 import {
-  shouldShowPrettyPrint,
   traverseResults,
   toEditorLine,
   toEditorPosition,
@@ -22,19 +21,7 @@ import {
   getCursorLine,
 } from "../index";
 
-import { makeMockSource, makeMockSourceAndContent } from "../../test-mockup";
-
-describe("shouldShowPrettyPrint", () => {
-  it("shows pretty print for a source", () => {
-    const { content, ...source } = makeMockSourceAndContent(
-      "http://example.com/index.js",
-      "test-id-123",
-      "text/javascript",
-      "some text here"
-    );
-    expect(shouldShowPrettyPrint(source, content)).toEqual(true);
-  });
-});
+import { makeMockSource } from "../../test-mockup";
 
 describe("traverseResults", () => {
   const e: any = { stopPropagation: jest.fn(), preventDefault: jest.fn() };
diff --git a/devtools/client/debugger/src/utils/source.js b/devtools/client/debugger/src/utils/source.js
index 218361f75487..72d6c3f1d889 100644
--- a/devtools/client/debugger/src/utils/source.js
+++ b/devtools/client/debugger/src/utils/source.js
@@ -20,7 +20,7 @@ import { renderWasmText } from "./wasm";
 import { toEditorLine } from "./editor";
 export { isMinified } from "./isMinified";
 import { getURL, getFileExtension } from "./sources-tree";
-import { prefs, features } from "./prefs";
+import { features } from "./prefs";
 
 import type {
   SourceId,
@@ -78,23 +78,6 @@ export function shouldBlackbox(source: ?Source) {
   return true;
 }
 
-export function shouldPrettyPrint(
-  source: Source,
-  content: SourceContent
-): boolean {
-  if (
-    !source ||
-    isPretty(source) ||
-    !isJavaScript(source, content) ||
-    isOriginal(source) ||
-    (prefs.clientSourceMapsEnabled && source.sourceMapURL)
-  ) {
-    return false;
-  }
-
-  return true;
-}
-
 /**
  * Returns true if the specified url and/or content type are specific to
  * javascript files.