diff --git a/browser/extensions/screenshots/background/auth.js b/browser/extensions/screenshots/background/auth.js
index b8a2ad121d32..ef879b97c8de 100644
--- a/browser/extensions/screenshots/background/auth.js
+++ b/browser/extensions/screenshots/background/auth.js
@@ -3,7 +3,7 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* globals log */
-/* globals main, makeUuid, deviceInfo, analytics, catcher, buildSettings, communication, browser */
+/* globals main, makeUuid, deviceInfo, analytics, catcher, communication, browser */
 
 "use strict";
 
@@ -177,7 +177,7 @@ this.auth = (function() {
   };
 
   exports.getSentryPublicDSN = function() {
-    return sentryPublicDSN || buildSettings.defaultSentryDsn;
+    return sentryPublicDSN;
   };
 
   exports.getAbTests = function() {
diff --git a/browser/extensions/screenshots/background/main.js b/browser/extensions/screenshots/background/main.js
index a463744b05f6..b028d4c36f28 100644
--- a/browser/extensions/screenshots/background/main.js
+++ b/browser/extensions/screenshots/background/main.js
@@ -2,12 +2,13 @@
  * 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/. */
 
-/* globals browser, getStrings, selectorLoader, analytics, communication, catcher, log, makeUuid, auth, senderror, startBackground, blobConverters buildSettings, startSelectionWithOnboarding */
+/* globals browser, getStrings, selectorLoader, analytics, communication, catcher, log, makeUuid, auth, senderror, startBackground, blobConverters, startSelectionWithOnboarding */
 
 "use strict";
 
 this.main = (function() {
   const exports = {};
+  const pngToJpegCutoff = 2500000;
 
   const { sendEvent, incrementCount } = analytics;
 
@@ -182,8 +183,7 @@ this.main = (function() {
     canvas.getContext("2d").putImageData(imageData, 0, 0);
     let dataUrl = canvas.toDataURL();
     if (
-      buildSettings.pngToJpegCutoff &&
-      dataUrl.length > buildSettings.pngToJpegCutoff
+      dataUrl.length > pngToJpegCutoff
     ) {
       const jpegDataUrl = canvas.toDataURL("image/jpeg");
       if (jpegDataUrl.length < dataUrl.length) {
diff --git a/browser/extensions/screenshots/background/selectorLoader.js b/browser/extensions/screenshots/background/selectorLoader.js
index 2312469af015..d8e9d896fbb2 100644
--- a/browser/extensions/screenshots/background/selectorLoader.js
+++ b/browser/extensions/screenshots/background/selectorLoader.js
@@ -15,7 +15,6 @@ this.selectorLoader = (function() {
   // These modules are loaded in order, first standardScripts and then selectorScripts
   // The order is important due to dependencies
   const standardScripts = [
-    "build/buildSettings.js",
     "log.js",
     "catcher.js",
     "assertIsTrusted.js",
diff --git a/browser/extensions/screenshots/background/takeshot.js b/browser/extensions/screenshots/background/takeshot.js
index 22d8e4f71eb1..aafa302b874e 100644
--- a/browser/extensions/screenshots/background/takeshot.js
+++ b/browser/extensions/screenshots/background/takeshot.js
@@ -2,7 +2,7 @@
  * 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/. */
 
-/* globals browser, communication, shot, main, auth, catcher, analytics, buildSettings, blobConverters, thumbnailGenerator */
+/* globals browser, communication, shot, main, auth, catcher, analytics, blobConverters, thumbnailGenerator */
 
 "use strict";
 
diff --git a/browser/extensions/screenshots/build/buildSettings.js b/browser/extensions/screenshots/build/buildSettings.js
deleted file mode 100644
index b9b542451182..000000000000
--- a/browser/extensions/screenshots/build/buildSettings.js
+++ /dev/null
@@ -1,14 +0,0 @@
-/* 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/. */
-
-window.buildSettings = {
-  defaultSentryDsn: "",
-  logLevel: "" || "warn",
-  captureText: "" === "true",
-  uploadBinary: "" === "true",
-  pngToJpegCutoff: parseInt("" || 2500000, 10),
-  maxImageHeight: parseInt("" || 10000, 10),
-  maxImageWidth: parseInt("" || 10000, 10),
-};
-null;
diff --git a/browser/extensions/screenshots/log.js b/browser/extensions/screenshots/log.js
index 96be7e57edbc..e38165e9cfa8 100644
--- a/browser/extensions/screenshots/log.js
+++ b/browser/extensions/screenshots/log.js
@@ -9,17 +9,15 @@
 
 this.log = (function() {
   const exports = {};
+  const logLevel = "warn";
 
   const levels = ["debug", "info", "warn", "error"];
-  if (!levels.includes(buildSettings.logLevel)) {
-    console.warn("Invalid buildSettings.logLevel:", buildSettings.logLevel);
-  }
   const shouldLog = {};
 
   {
     let startLogging = false;
     for (const level of levels) {
-      if (buildSettings.logLevel === level) {
+      if (logLevel === level) {
         startLogging = true;
       }
       if (startLogging) {
diff --git a/browser/extensions/screenshots/manifest.json b/browser/extensions/screenshots/manifest.json
index c0b1421c9d59..0ca08f6f6d1c 100644
--- a/browser/extensions/screenshots/manifest.json
+++ b/browser/extensions/screenshots/manifest.json
@@ -15,7 +15,6 @@
   "l10n_resources": [ "browser/screenshots.ftl" ],
   "background": {
     "scripts": [
-      "build/buildSettings.js",
       "background/startBackground.js"
     ]
   },
@@ -31,7 +30,6 @@
     {
       "matches": ["https://screenshots.firefox.com/*"],
       "js": [
-        "build/buildSettings.js",
         "log.js",
         "catcher.js",
         "selector/callBackground.js",
diff --git a/browser/extensions/screenshots/moz.build b/browser/extensions/screenshots/moz.build
index 61377c734df0..267d9005d28f 100644
--- a/browser/extensions/screenshots/moz.build
+++ b/browser/extensions/screenshots/moz.build
@@ -38,7 +38,6 @@ FINAL_TARGET_FILES.features["screenshots@mozilla.org"]["background"] += [
 ]
 
 FINAL_TARGET_FILES.features["screenshots@mozilla.org"]["build"] += [
-    "build/buildSettings.js",
     "build/inlineSelectionCss.js",
     "build/raven.js",
     "build/selection.js",
diff --git a/browser/extensions/screenshots/selector/shooter.js b/browser/extensions/screenshots/selector/shooter.js
index 70eb59c5a813..68d59ac3efed 100644
--- a/browser/extensions/screenshots/selector/shooter.js
+++ b/browser/extensions/screenshots/selector/shooter.js
@@ -3,7 +3,7 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* globals global, browser, documentMetadata, util, uicontrol, ui, catcher */
-/* globals buildSettings, domainFromUrl, randomString, shot, blobConverters */
+/* globals domainFromUrl, randomString, shot, blobConverters */
 
 "use strict";
 
diff --git a/browser/extensions/screenshots/selector/ui.js b/browser/extensions/screenshots/selector/ui.js
index 146416dcd6cd..8a7a37bec562 100644
--- a/browser/extensions/screenshots/selector/ui.js
+++ b/browser/extensions/screenshots/selector/ui.js
@@ -2,7 +2,7 @@
  * 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/. */
 
-/* globals browser, log, util, catcher, inlineSelectionCss, callBackground, assertIsTrusted, assertIsBlankDocument, buildSettings blobConverters */
+/* globals browser, log, util, catcher, inlineSelectionCss, callBackground, assertIsTrusted, assertIsBlankDocument, blobConverters */
 
 "use strict";
 
diff --git a/browser/extensions/screenshots/selector/uicontrol.js b/browser/extensions/screenshots/selector/uicontrol.js
index 35dc8f3fe2a9..ac109ea63dd7 100644
--- a/browser/extensions/screenshots/selector/uicontrol.js
+++ b/browser/extensions/screenshots/selector/uicontrol.js
@@ -3,7 +3,7 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* globals log, catcher, util, ui, slides, global */
-/* globals shooter, callBackground, selectorLoader, assertIsTrusted, buildSettings, selection */
+/* globals shooter, callBackground, selectorLoader, assertIsTrusted, selection */
 
 "use strict";
 
@@ -49,8 +49,8 @@ this.uicontrol = (function() {
 
   const { watchFunction, watchPromise } = catcher;
 
-  const MAX_PAGE_HEIGHT = buildSettings.maxImageHeight;
-  const MAX_PAGE_WIDTH = buildSettings.maxImageWidth;
+  const MAX_PAGE_HEIGHT = 10000;
+  const MAX_PAGE_WIDTH = 10000;
   // An autoselection smaller than these will be ignored entirely:
   const MIN_DETECT_ABSOLUTE_HEIGHT = 10;
   const MIN_DETECT_ABSOLUTE_WIDTH = 30;
diff --git a/devtools/server/actors/utils/capture-screenshot.js b/devtools/server/actors/utils/capture-screenshot.js
index 017db5f337fa..a58b534b0885 100644
--- a/devtools/server/actors/utils/capture-screenshot.js
+++ b/devtools/server/actors/utils/capture-screenshot.js
@@ -13,7 +13,7 @@ const L10N = new LocalizationHelper(STRINGS_URI);
 // These values are used to truncate the resulting image if the captured area is bigger.
 // This is to avoid failing to produce a screenshot at all.
 // It is recommended to keep these values in sync with the corresponding screenshots addon
-// values in /browser/extensions/screenshots/build/buildSettings.js
+// values in /browser/extensions/screenshots/selector/uicontrol.js
 const MAX_IMAGE_WIDTH = 10000;
 const MAX_IMAGE_HEIGHT = 10000;