diff --git a/core/audits/installable-manifest.js b/core/audits/installable-manifest.js
index d6914ff74892..415e98ed43d1 100644
--- a/core/audits/installable-manifest.js
+++ b/core/audits/installable-manifest.js
@@ -39,9 +39,9 @@ const UIStrings = {
   /** Error message explaining that the provided manifest URL is invalid. */
   'start-url-not-valid': `Manifest start URL is not valid`,
   /** Error message explaining that the provided manifest does not contain a name or short_name field. */
-  'manifest-missing-name-or-short-name': `Manifest does not contain a 'name' or 'short_name' field`,
+  'manifest-missing-name-or-short-name': 'Manifest does not contain a `name` or `short_name` field',
   /** Error message explaining that the manifest display property must be one of 'standalone', 'fullscreen', or 'minimal-ui'. */
-  'manifest-display-not-supported': `Manifest 'display' property must be one of 'standalone', 'fullscreen', or 'minimal-ui'`,
+  'manifest-display-not-supported': 'Manifest `display` property must be one of `standalone`, `fullscreen`, or `minimal-ui`',
   /** Error message explaining that the manifest could not be fetched, might be empty, or could not be parsed. */
   'manifest-empty': `Manifest could not be fetched, is empty, or could not be parsed`,
   /**
diff --git a/core/test/audits/installable-manifest-test.js b/core/test/audits/installable-manifest-test.js
index 2bd2def26861..ed3b2749e078 100644
--- a/core/test/audits/installable-manifest-test.js
+++ b/core/test/audits/installable-manifest-test.js
@@ -115,7 +115,7 @@ describe('PWA: webapp install banner audit', () => {
       return InstallableManifestAudit.audit(artifacts, context).then(result => {
         assert.strictEqual(result.score, 0);
         const items = result.details.items;
-        expect(items[0].reason).toBeDisplayString(/does not contain a 'name'/);
+        expect(items[0].reason).toBeDisplayString(/does not contain a `name`/);
       });
     });
 
diff --git a/shared/localization/locales/en-US.json b/shared/localization/locales/en-US.json
index a7b4eef57f4d..2cf8aee84f97 100644
--- a/shared/localization/locales/en-US.json
+++ b/shared/localization/locales/en-US.json
@@ -1026,7 +1026,7 @@
     "message": "Page is loaded in an incognito window"
   },
   "core/audits/installable-manifest.js | manifest-display-not-supported": {
-    "message": "Manifest 'display' property must be one of 'standalone', 'fullscreen', or 'minimal-ui'"
+    "message": "Manifest `display` property must be one of `standalone`, `fullscreen`, or `minimal-ui`"
   },
   "core/audits/installable-manifest.js | manifest-display-override-not-supported": {
     "message": "Manifest contains 'display_override' field, and the first supported display mode must be one of 'standalone', 'fullscreen', or 'minimal-ui'"
@@ -1038,7 +1038,7 @@
     "message": "Manifest URL changed while the manifest was being fetched."
   },
   "core/audits/installable-manifest.js | manifest-missing-name-or-short-name": {
-    "message": "Manifest does not contain a 'name' or 'short_name' field"
+    "message": "Manifest does not contain a `name` or `short_name` field"
   },
   "core/audits/installable-manifest.js | manifest-missing-suitable-icon": {
     "message": "Manifest does not contain a suitable icon - PNG, SVG or WebP format of at least {value0} px is required, the sizes attribute must be set, and the purpose attribute, if set, must include \"any\"."
diff --git a/shared/localization/locales/en-XL.json b/shared/localization/locales/en-XL.json
index 471b32858ebc..466442cd41ad 100644
--- a/shared/localization/locales/en-XL.json
+++ b/shared/localization/locales/en-XL.json
@@ -1026,7 +1026,7 @@
     "message": "P̂áĝé îś l̂óâd́êd́ îń âń îńĉóĝńît́ô ẃîńd̂óŵ"
   },
   "core/audits/installable-manifest.js | manifest-display-not-supported": {
-    "message": "M̂án̂íf̂éŝt́ 'd̂íŝṕl̂áŷ' ṕr̂óp̂ér̂t́ŷ ḿûśt̂ b́ê ón̂é ôf́ 'ŝt́âńd̂ál̂ón̂é', 'f̂úl̂ĺŝćr̂éêń', ôŕ 'm̂ín̂ím̂ál̂-úî'"
+    "message": "M̂án̂íf̂éŝt́ `display` p̂ŕôṕêŕt̂ý m̂úŝt́ b̂é ôńê óf̂ `standalone`, `fullscreen`, ór̂ `minimal-ui`"
   },
   "core/audits/installable-manifest.js | manifest-display-override-not-supported": {
     "message": "M̂án̂íf̂éŝt́ ĉón̂t́âín̂ś 'd̂íŝṕl̂áŷ_óv̂ér̂ŕîd́ê' f́îél̂d́, âńd̂ t́ĥé f̂ír̂śt̂ śûṕp̂ór̂t́êd́ d̂íŝṕl̂áŷ ḿôd́ê ḿûśt̂ b́ê ón̂é ôf́ 'ŝt́âńd̂ál̂ón̂é', 'f̂úl̂ĺŝćr̂éêń', ôŕ 'm̂ín̂ím̂ál̂-úî'"
@@ -1038,7 +1038,7 @@
     "message": "M̂án̂íf̂éŝt́ ÛŔL̂ ćĥán̂ǵêd́ ŵh́îĺê t́ĥé m̂án̂íf̂éŝt́ ŵáŝ b́êín̂ǵ f̂ét̂ćĥéd̂."
   },
   "core/audits/installable-manifest.js | manifest-missing-name-or-short-name": {
-    "message": "M̂án̂íf̂éŝt́ d̂óêś n̂ót̂ ćôńt̂áîń â 'ńâḿê' ór̂ 'śĥór̂t́_n̂ám̂é' f̂íêĺd̂"
+    "message": "M̂án̂íf̂éŝt́ d̂óêś n̂ót̂ ćôńt̂áîń â `name` ór̂ `short_name` f́îél̂d́"
   },
   "core/audits/installable-manifest.js | manifest-missing-suitable-icon": {
     "message": "M̂án̂íf̂éŝt́ d̂óêś n̂ót̂ ćôńt̂áîń â śûít̂áb̂ĺê íĉón̂ - ṔN̂Ǵ, ŜV́Ĝ ór̂ Ẃêb́P̂ f́ôŕm̂át̂ óf̂ át̂ ĺêáŝt́ {value0} p̂x́ îś r̂éq̂úîŕêd́, t̂h́ê śîźêś ât́t̂ŕîb́ût́ê ḿûśt̂ b́ê śêt́, âńd̂ t́ĥé p̂úr̂ṕôśê át̂t́r̂íb̂út̂é, îf́ ŝét̂, ḿûśt̂ ín̂ćl̂úd̂é \"âńŷ\"."