diff --git a/web/pdf_find_utils.js b/web/pdf_find_utils.js
index dc32e073d..bb52a4623 100644
--- a/web/pdf_find_utils.js
+++ b/web/pdf_find_utils.js
@@ -120,11 +120,21 @@ function getNormalizeWithNFKC() {
     (typeof PDFJSDev === "undefined" && FeatureTest.platform.isFirefox) ||
     (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL"))
   ) {
+    // The `NormalizeWithNFKC` string is generated with the for loop below.
+    // Because of a small difference between Chrome and Firefox, the string is
+    // only hardcoded for Firefox, and Chrome (or others) will generate it at
+    // runtime.
+    // In order to detect if the string is up to date, a check is performed in
+    // the loop below, and if a difference is detected, an error is thrown.
     /* eslint-disable no-irregular-whitespace */
     NormalizeWithNFKC ||= `\xA0¨ª¯²-µ¸-º¼-¾IJ-ijĿ-ŀʼnſDŽ-njDZ-dzʰ-ʸ˘-˝ˠ-ˤʹͺ;΄-΅·ϐ-ϖϰ-ϲϴ-ϵϹևٵ-ٸक़-य़ড়-ঢ়য়ਲ਼ਸ਼ਖ਼-ਜ਼ਫ਼ଡ଼-ଢ଼ำຳໜ-ໝ༌གྷཌྷདྷབྷཛྷཀྵჼᴬ-ᴮᴰ-ᴺᴼ-ᵍᵏ-ᵪᵸᶛ-ᶿẚ-ẛάέήίόύώΆ᾽-῁ΈΉ῍-῏ΐΊ῝-῟ΰΎ῭-`ΌΏ´-῾ - ‑‗․-… ″-‴‶-‷‼‾⁇-⁉⁗ ⁰-ⁱ⁴-₎ₐ-ₜ₨℀-℃℅-ℇ℉-ℓℕ-№ℙ-ℝ℠-™ℤΩℨK-ℭℯ-ℱℳ-ℹ℻-⅀ⅅ-ⅉ⅐-ⅿ↉∬-∭∯-∰〈-〉①-⓪⨌⩴-⩶⫝̸ⱼ-ⱽⵯ⺟⻳⼀-⿕　〶〸-〺゛-゜ゟヿㄱ-ㆎ㆒-㆟㈀-㈞㈠-㉇㉐-㉾㊀-㏿ꚜ-ꚝꝰ꟱-ꟴꟸ-ꟹꭜ-ꭟꭩ豈-嗀塚晴凞-羽蘒諸逸-都飯-舘並-龎ff-stﬓ-ﬗיִײַ-זּטּ-לּמּנּ-סּףּ-פּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-﷼︐-︙︰-﹄﹇-﹒﹔-﹦﹨-﹫ﹰ-ﹲﹴﹶ-ﻼ！-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ￠-￦`;
   }
 
-  if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) {
+  if (
+    typeof PDFJSDev === "undefined" ||
+    PDFJSDev.test("TESTING") ||
+    (!PDFJSDev.test("MOZCENTRAL") && !NormalizeWithNFKC)
+  ) {
     const ranges = [];
     const range = [];
     const diacriticsRegex = /^\p{M}$/u;