Index: gc_lang/fr/webext/background.js
==================================================================
--- gc_lang/fr/webext/background.js
+++ gc_lang/fr/webext/background.js
@@ -1,25 +1,39 @@
 // Background 
 
 "use strict";
 
+/*
+    
+*/
+let funcSendResultBack = null;
+
+/*
+    Worker (separate thread to avoid freezing Firefox)
+*/
 let xGCEWorker = new Worker("gce_worker.js");
 
 xGCEWorker.onmessage = function (e) {
+    // https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent
     switch (e.data[0]) {
         case "grammar_errors":
             console.log("GRAMMAR ERRORS");
             console.log(e.data[1].aGrammErr);
+            browser.runtime.sendMessage({sCommand: "grammar_errors", aGrammErr: e.data[1].aGrammErr});
             break;
         case "spelling_and_grammar_errors":
             console.log("SPELLING AND GRAMMAR ERRORS");
             console.log(e.data[1].aSpellErr);
             console.log(e.data[1].aGrammErr);
             break;
-        case "tests_results":
+        case "text_to_test_result":
+            browser.runtime.sendMessage({sCommand: "text_to_test_result", sResult: e.data[1]});
+            break;
+        case "fulltests_result":
             console.log("TESTS RESULTS");
-            console.log(e.data[1]);
+            //console.log(e.data[1]);
+            browser.runtime.sendMessage({sCommand: "fulltests_result", sResult: e.data[1]});
             break;
         case "options":
             console.log("OPTIONS");
             console.log(e.data[1]);
             break;
@@ -36,23 +50,29 @@
     }
 };
 
 xGCEWorker.postMessage(["init", {sExtensionPath: browser.extension.getURL("."), sOptions: "", sContext: "Firefox"}]);
 
-xGCEWorker.postMessage(["parse", {sText: "J’en aie mare...", sCountry: "FR", bDebug: false, bContext: false}]);
-
 xGCEWorker.postMessage(["parseAndSpellcheck", {sText: "C’est terribles, ils va tout perdrre.", sCountry: "FR", bDebug: false, bContext: false}]);
 
 xGCEWorker.postMessage(["getListOfTokens", {sText: "J’en ai assez de ces âneries ! Merci bien. Ça suffira."}]);
 
-xGCEWorker.postMessage(["fullTests"]);
 
 
 /*
     Messages from the extension (not the Worker)
 */
 function handleMessage (oRequest, xSender, sendResponse) {
-  console.log(`[background] received: ${oRequest.content}`);
-  sendResponse({response: "response from background script"});
+    console.log(xSender);
+    console.log(sendResponse);
+    switch(oRequest.sCommand) {
+        case "text_to_test":
+            xGCEWorker.postMessage(["textToTest", {sText: oRequest.sText, sCountry: "FR", bDebug: false, bContext: false}]);
+            break;
+        case "fulltests":
+            xGCEWorker.postMessage(["fullTests"]);
+            break;
+    }
+    //sendResponse({response: "response from background script"});
 }
 
 browser.runtime.onMessage.addListener(handleMessage);

Index: gc_lang/fr/webext/gce_worker.js
==================================================================
--- gc_lang/fr/webext/gce_worker.js
+++ gc_lang/fr/webext/gce_worker.js
@@ -83,10 +83,13 @@
             setOption(oParam.sOptName, oParam.bValue);
             break;
         case "resetOptions":
             resetOptions();
             break;
+        case "textToTest":
+            textToTest(oParam.sText, oParam.sCountry, oParam.bDebug, oParam.bContext);
+            break;
         case "fullTests":
             fullTests();
             break;
         case "getListOfTokens":
             getListOfTokens(oParam.sText);
@@ -170,10 +173,23 @@
     let aRes = gc_engine.parse("Je suit...");
     for (let oErr of aRes) {
         console.log(text.getReadableError(oErr));
     }
 }
+
+function textToTest (sText, sCountry, bDebug, bContext) {
+    if (!gc_engine || !oDict) {
+        postMessage(["error", "# Error: grammar checker or dictionary not loaded."]);
+        return;
+    }
+    let aGrammErr = gc_engine.parse(sText, sCountry, bDebug, bContext);
+    let sMsg = "";
+    for (let oErr of aGrammErr) {
+        sMsg += text.getReadableError(oErr) + "\n";
+    }
+    postMessage(["text_to_test_result", sMsg]);
+}
 
 function fullTests (sGCOptions='{"nbsp":true, "esp":true, "unit":true, "num":true}') {
     if (!gc_engine || !oDict) {
         postMessage(["error", "# Error: grammar checker or dictionary not loaded."]);
         return;
@@ -186,11 +202,11 @@
     for (let sRes of oTest.testParse()) {
         sMsg += sRes + "\n";
         console.log(sRes);
     }
     gc_engine.setOptions(dMemoOptions);
-    postMessage(["tests_results", sMsg]);
+    postMessage(["fulltests_result", sMsg]);
 }
 
 
 // Lexicographer
 

Index: gc_lang/fr/webext/panel/main.css
==================================================================
--- gc_lang/fr/webext/panel/main.css
+++ gc_lang/fr/webext/panel/main.css
@@ -263,11 +263,11 @@
     border: 2px solid hsl(0, 0%, 89%);
     border-radius: 3px;
     resize: vertical;
 }
 
-#test_results {
+#tests_result {
     padding: 15px;
     background-color: hsl(0, 0%, 96%);
 }
 
 #test_page .button {

Index: gc_lang/fr/webext/panel/main.html
==================================================================
--- gc_lang/fr/webext/panel/main.html
+++ gc_lang/fr/webext/panel/main.html
@@ -61,22 +61,21 @@
         </section>
 
         <section id="test_page" class="page">
           <div id="test_cmd">
             <h1>TESTS</h1>
-            <textarea id="text" rows="10"></textarea>
-            <div id="testall" class="button blue">Tests complets</div> <div id="parse" class="button green fright">Analyser</div>
+            <textarea id="text_to_test" rows="10"></textarea>
+            <div id="fulltests" class="button blue">Tests complets</div> <div id="text_to_test" class="button green fright">Analyser</div>
           </div>
-          <div id="test_results">
-          </div>
+          <pre id="tests_result"></pre>
         </section>
 
         <section id="conj_page" class="page">
           <h1>CONJUGUEUR</h1>
           <p class="right" style="margin: 10px 30px 0 0">
             <input type="text" id="verb" name="verb" maxlength="40" value="" placeholder="entrez un verbe" autofocus />
-            <a id="conjugate" href="#" onclick="return false;">Conjuguer</a>
+            <a id="conjugate" href="#">Conjuguer</a>
           <p>
 
           <div class="clearer"></div>
 
           <p id="conj_smallnote" hidden>Ce verbe n’a pas encore été vérifié. C’est pourquoi les options “pronominal” et “temps composés” sont désactivées.</p>

Index: gc_lang/fr/webext/panel/main.js
==================================================================
--- gc_lang/fr/webext/panel/main.js
+++ gc_lang/fr/webext/panel/main.js
@@ -1,70 +1,95 @@
+// Main panel
 
 function showError (e) {
-  console.error(e.fileName + "\n" + e.name + "\nline: " + e.lineNumber + "\n" + e.message);
-}
-
-function beastNameToURL(beastName) {
-  switch (beastName) {
-    case "Frog":
-      return browser.extension.getURL("beasts/frog.jpg");
-    case "Snake":
-      return browser.extension.getURL("beasts/snake.jpg");
-    case "Turtle":
-      return browser.extension.getURL("beasts/turtle.jpg");
-  }
-}
-
-window.addEventListener(
-  "click",
-  function (xEvent) {
-    let xElem = xEvent.target;
-    if (xElem.id) {
-      if (xElem.id) {
-
-      }
-    } else if (xElem.className === "select") {
-      showPage(xElem.dataset.page);
-    } else if (xElem.tagName === "A") {
-      openURL(xElem.getAttribute("href"));
-    }
-  },
-  false
+    console.error(e.fileName + "\n" + e.name + "\nline: " + e.lineNumber + "\n" + e.message);
+}
+
+function showPage (sPageName) {
+    try {
+        // hide them all
+        for (let xNodePage of document.getElementsByClassName("page")) {
+            xNodePage.style.display = "none";
+        }
+        // show the selected one
+        document.getElementById(sPageName).style.display = "block";
+        // specific modifications
+        if (sPageName === "conj_page") {
+            document.body.style.width = "600px";
+            document.documentElement.style.width = "600px";
+            //document.getElementById("movewindow").style.display = "none";
+        } else {
+            document.body.style.width = "530px";
+            document.documentElement.style.width = "530px";
+            //document.getElementById("movewindow").style.display = "block";
+        }
+    }
+    catch (e) {
+        showError(e);
+    }
+}
+
+
+/*
+    Events
+*/
+window.addEventListener(
+    "click",
+    function (xEvent) {
+        let xElem = xEvent.target;
+        if (xElem.id) {
+            switch (xElem.id) {
+                case "text_to_test":
+                    browser.runtime.sendMessage({sCommand: "text_to_test", sText: document.getElementById("text_to_test").value});
+                    break;
+                case "fulltests":
+                    document.getElementById("tests_result").textContent = "Veuillez patienter…";
+                    browser.runtime.sendMessage({sCommand: "fulltests"});
+                    break;
+            }
+        } else if (xElem.className === "select") {
+            showPage(xElem.dataset.page);
+        } else if (xElem.tagName === "A") {
+            openURL(xElem.getAttribute("href"));
+        }
+    },
+    false
 );
 
-function showPage (sPageName) {
-  try {
-    // hide them all
-    for (let xNodePage of document.getElementsByClassName("page")) {
-      xNodePage.style.display = "None";
-    }
-    // show the one
-    document.getElementById(sPageName).style.display = "block";
-    sendMessage("Mon message");
-    // specific modifications
-    if (sPageName === "conj_page") {
-      document.body.style.width = "600px";
-      document.documentElement.style.width = "600px";
-      //document.getElementById("movewindow").style.display = "none";
-    } else {
-      document.body.style.width = "530px";
-      document.documentElement.style.width = "530px";
-      //document.getElementById("movewindow").style.display = "block";
-    }
-  }
-  catch (e) {
-    showError(e);
-  }
-}
-
-function handleResponse(message) {
-  console.log(`[Panel] received: ${message.response}`);
-}
-
-function handleError(error) {
-  console.log(`[Panel] Error: ${error}`);
-}
-
-function sendMessage (sMessage) {
-  let sending = browser.runtime.sendMessage({content: sMessage});
-  sending.then(handleResponse, handleError);  
-}
+
+/* 
+    Message sender
+    and response handling
+*/
+function handleResponse (oResponse) {
+    console.log(`[Panel] received:`);
+    console.log(oResponse);
+}
+
+function handleError (error) {
+    console.log(`[Panel] Error:`);
+    console.log(error);
+}
+
+function sendMessageAndWaitResponse (oData) {
+    let xPromise = browser.runtime.sendMessage(oData);
+    xPromise.then(handleResponse, handleError);  
+}
+
+
+/*
+    Messages received
+*/
+function handleMessage (oMessage, xSender, sendResponse) {
+    //console.log(xSender);
+    switch(oMessage.sCommand) {
+        case "text_to_test_result":
+            document.getElementById("tests_result").textContent = oMessage.sResult;
+            break;
+        case "fulltests_result":
+            document.getElementById("tests_result").textContent = oMessage.sResult;
+            break;
+    }
+    sendResponse({sCommand: "none", sResult: "done"});
+}
+
+browser.runtime.onMessage.addListener(handleMessage);