Index: gc_lang/fr/webext/background.js
==================================================================
--- gc_lang/fr/webext/background.js
+++ gc_lang/fr/webext/background.js
@@ -7,12 +7,14 @@
     console.error(e.fileName + "\n" + e.name + "\nline: " + e.lineNumber + "\n" + e.message);
 }
 
 // Chrome don’t follow the W3C specification:
 // https://browserext.github.io/browserext/
+let bChrome = false;
 if (typeof(browser) !== "object") {
     var browser = chrome;
+    bChrome = true;
 }
 
 
 /*
     Worker (separate thread to avoid freezing Firefox)
@@ -65,22 +67,27 @@
     catch (e) {
         showError(e);
     }
 };
 
+function initGrammarChecker (dSavedOptions) {
+    let dOptions = (dSavedOptions.hasOwnProperty("gc_options")) ? dSavedOptions.gc_options : null;
+    xGCEWorker.postMessage({
+        sCommand: "init",
+        dParam: {sExtensionPath: browser.extension.getURL(""), dOptions: dOptions, sContext: "Firefox"},
+        dInfo: {}
+    });
+}
 
 function init () {
+    if (bChrome) {
+        browser.storage.local.get("gc_options", initGrammarChecker);
+        return;
+    }
     let xPromise = browser.storage.local.get("gc_options");
     xPromise.then(
-        function (dSavedOptions) {
-            let dOptions = (dSavedOptions.hasOwnProperty("gc_options")) ? dSavedOptions.gc_options : null;
-            xGCEWorker.postMessage({
-                sCommand: "init",
-                dParam: {sExtensionPath: browser.extension.getURL("."), dOptions: dOptions, sContext: "Firefox"},
-                dInfo: {}
-            });
-        },
+        initGrammarChecker,
         function (e) {
             showError(e);
             xGCEWorker.postMessage({
                 sCommand: "init",
                 dParam: {sExtensionPath: browser.extension.getURL("."), dOptions: null, sContext: "Firefox"},