diff --git a/packages/react-devtools-core/webpack.backend.js b/packages/react-devtools-core/webpack.backend.js
index 1461545d29d57..336ae310affde 100644
--- a/packages/react-devtools-core/webpack.backend.js
+++ b/packages/react-devtools-core/webpack.backend.js
@@ -19,7 +19,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   entry: {
     backend: './src/backend.js',
   },
diff --git a/packages/react-devtools-core/webpack.standalone.js b/packages/react-devtools-core/webpack.standalone.js
index 61c1d962372b5..4d00d0f2d3a67 100644
--- a/packages/react-devtools-core/webpack.standalone.js
+++ b/packages/react-devtools-core/webpack.standalone.js
@@ -19,7 +19,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   target: 'electron-main',
   entry: {
     standalone: './src/standalone.js',
diff --git a/packages/react-devtools-extensions/chrome/manifest.json b/packages/react-devtools-extensions/chrome/manifest.json
index f8abb8f49ec28..60fd566a5ebd5 100644
--- a/packages/react-devtools-extensions/chrome/manifest.json
+++ b/packages/react-devtools-extensions/chrome/manifest.json
@@ -32,7 +32,14 @@
     "main.html",
     "panel.html",
     "build/react_devtools_backend.js",
-    "build/renderer.js"
+    "build/renderer.js",
+    "build/background.js.map",
+    "build/contentScript.js.map",
+    "build/injectGlobalHook.js.map",
+    "build/main.js.map",
+    "build/panel.js.map",
+    "build/renderer.js.map",
+    "build/react_devtools_backend.js.map"
   ],
 
   "background": {
diff --git a/packages/react-devtools-extensions/edge/manifest.json b/packages/react-devtools-extensions/edge/manifest.json
index 9e3b46f73a873..3fbb2900bd642 100644
--- a/packages/react-devtools-extensions/edge/manifest.json
+++ b/packages/react-devtools-extensions/edge/manifest.json
@@ -32,7 +32,14 @@
     "main.html",
     "panel.html",
     "build/react_devtools_backend.js",
-    "build/renderer.js"
+    "build/renderer.js",
+    "build/background.js.map",
+    "build/contentScript.js.map",
+    "build/injectGlobalHook.js.map",
+    "build/main.js.map",
+    "build/panel.js.map",
+    "build/renderer.js.map",
+    "build/react_devtools_backend.js.map"
   ],
 
   "background": {
diff --git a/packages/react-devtools-extensions/firefox/manifest.json b/packages/react-devtools-extensions/firefox/manifest.json
index d380a6dbdad2f..ebe8547f10f5b 100644
--- a/packages/react-devtools-extensions/firefox/manifest.json
+++ b/packages/react-devtools-extensions/firefox/manifest.json
@@ -37,7 +37,14 @@
     "main.html",
     "panel.html",
     "build/react_devtools_backend.js",
-    "build/renderer.js"
+    "build/renderer.js",
+    "build/background.js.map",
+    "build/contentScript.js.map",
+    "build/injectGlobalHook.js.map",
+    "build/main.js.map",
+    "build/panel.js.map",
+    "build/renderer.js.map",
+    "build/react_devtools_backend.js.map"
   ],
 
   "background": {
diff --git a/packages/react-devtools-extensions/webpack.backend.js b/packages/react-devtools-extensions/webpack.backend.js
index 2399c10892e35..c9f1c336b0268 100644
--- a/packages/react-devtools-extensions/webpack.backend.js
+++ b/packages/react-devtools-extensions/webpack.backend.js
@@ -18,7 +18,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   entry: {
     backend: './src/backend.js',
   },
diff --git a/packages/react-devtools-extensions/webpack.config.js b/packages/react-devtools-extensions/webpack.config.js
index 162d418d83c32..e2720ec240a99 100644
--- a/packages/react-devtools-extensions/webpack.config.js
+++ b/packages/react-devtools-extensions/webpack.config.js
@@ -18,7 +18,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   entry: {
     background: './src/background.js',
     contentScript: './src/contentScript.js',
diff --git a/packages/react-devtools-inline/webpack.config.js b/packages/react-devtools-inline/webpack.config.js
index d841f48199e7a..85c7da82ea3ea 100644
--- a/packages/react-devtools-inline/webpack.config.js
+++ b/packages/react-devtools-inline/webpack.config.js
@@ -17,7 +17,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: false,
+  devtool: __DEV__ ? 'eval-cheap-source-map' : 'source-map',
   entry: {
     backend: './src/backend.js',
     frontend: './src/frontend.js',
diff --git a/packages/react-devtools-scheduling-profiler/webpack.config.js b/packages/react-devtools-scheduling-profiler/webpack.config.js
index 6f7028eea26c3..b69a5d1b411ee 100644
--- a/packages/react-devtools-scheduling-profiler/webpack.config.js
+++ b/packages/react-devtools-scheduling-profiler/webpack.config.js
@@ -40,7 +40,7 @@ const babelOptions = {
 
 const config = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   entry: {
     app: './src/index.js',
   },
diff --git a/packages/react-devtools-shell/webpack.config.js b/packages/react-devtools-shell/webpack.config.js
index b1c737f6fa569..500fed2fb12ee 100644
--- a/packages/react-devtools-shell/webpack.config.js
+++ b/packages/react-devtools-shell/webpack.config.js
@@ -25,7 +25,7 @@ const DEVTOOLS_VERSION = getVersionString();
 
 const config = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: false,
+  devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
   entry: {
     app: './src/app/index.js',
     devtools: './src/devtools.js',