Index: gc_lang/fr/build.py
==================================================================
--- gc_lang/fr/build.py
+++ gc_lang/fr/build.py
@@ -1,35 +1,57 @@
 # Builder for French language
 
 import os
 import platform
 import zipfile
+import shutil
+import json
+import traceback
 from distutils import dir_util, file_util
 
 import helpers
 
 
 def build (sLang, dVars):
     "complementary build launched from make.py"
     createWebExtension(sLang, dVars)
+    convertWebExtensionForChrome(sLang, dVars)
     createMailExtension(sLang, dVars)
     createNodeJSPackage(sLang)
 
 
 def createWebExtension (sLang, dVars):
     "create Web-extension"
-    print("Building WebExtension")
+    print("> Building WebExtension for Firefox")
     helpers.createCleanFolder("_build/webext/"+sLang)
     dir_util.copy_tree("gc_lang/"+sLang+"/webext/", "_build/webext/"+sLang)
     dir_util.copy_tree("grammalecte-js", "_build/webext/"+sLang+"/grammalecte")
     dVars['webextOptionsHTML'] = _createOptionsForWebExtension(dVars)
     helpers.copyAndFileTemplate("_build/webext/"+sLang+"/manifest.json", "_build/webext/"+sLang+"/manifest.json", dVars)
     helpers.copyAndFileTemplate("_build/webext/"+sLang+"/panel/main.html", "_build/webext/"+sLang+"/panel/main.html", dVars)
     with helpers.CD("_build/webext/"+sLang):
         os.system("web-ext build")
     # Copy Firefox zip extension to _build
-    helpers.moveFolderContent("_build/webext/"+sLang+"/web-ext-artifacts", "_build", "fx-"+sLang+"-", True)
+    helpers.moveFolderContent("_build/webext/"+sLang+"/web-ext-artifacts", "_build", "firefox-", True)
+
+
+def convertWebExtensionForChrome (sLang, dVars):
+    "Create the extension for Chrome"
+    print("> Converting WebExtension for Chrome")
+    try:
+        with open(f"_build/webext/{sLang}/manifest.json", "r", encoding="utf-8") as hSrc:
+            dManifest = json.load(hSrc)
+            if "applications" in dManifest:
+                del dManifest["applications"]
+            if "chrome_settings_overrides" in dManifest:
+                del dManifest["chrome_settings_overrides"]
+        with open(f"_build/webext/{sLang}/manifest.json", "w", encoding="utf-8") as hDst:
+            json.dump(dManifest, hDst, ensure_ascii=True, indent=2)
+        shutil.make_archive(f"_build/chrome-grammalecte-{sLang}-v{dVars['version']}", 'zip', "_build/webext/"+sLang)
+    except:
+        traceback.print_exc()
+        print("  Error. Converting the WebExtension for Chrome failed.")
 
 
 def _createOptionsForWebExtension (dVars):
     sHTML = ""
     sLang = dVars['sDefaultUILang']
@@ -42,11 +64,11 @@
     return sHTML
 
 
 def createMailExtension (sLang, dVars):
     "create extension for Thunderbird (as MailExtension)"
-    print("Building extension for Thunderbird (MailExtension)")
+    print("> Building extension for Thunderbird (MailExtension)")
     spfZip = "_build/" + dVars['tb_identifier'] + "-v" + dVars['version'] + '.mailext.xpi'
     hZip = zipfile.ZipFile(spfZip, mode='w', compression=zipfile.ZIP_DEFLATED)
     _copyGrammalecteJSPackageInZipFile(hZip, sLang)
     for spf in ["LICENSE.txt", "LICENSE.fr.txt"]:
         hZip.write(spf)

Index: helpers.py
==================================================================
--- helpers.py
+++ helpers.py
@@ -99,12 +99,12 @@
     return Template(open(spf, "r", encoding="utf-8").read()).safe_substitute(dVars)
 
 
 def copyAndFileTemplate (spfSrc, spfDst, dVars):
     "write file <spfSrc> as <spfDst> with variables filed with <dVars>"
-    s = Template(open(spfSrc, "r", encoding="utf-8").read()).safe_substitute(dVars)
-    open(spfDst, "w", encoding="utf-8", newline="\n").write(s)
+    sText = Template(open(spfSrc, "r", encoding="utf-8").read()).safe_substitute(dVars)
+    open(spfDst, "w", encoding="utf-8", newline="\n").write(sText)
 
 
 def addFolderToZipAndFileFile (hZip, spSrc, spDst, dVars, bRecursive):
     "add folder content to zip archive and file files with <dVars>"
     # recursive function