various fixes

browser-extension/popup.js

@@ -68,16 +68,23 @@
     noteEl.value = v + link + '\n';
 
     captureBtn.disabled = true;
+    showStatus('Capturing full page…', true);
     try {
-      const dataUrl = await browser.tabs.captureVisibleTab({ format: 'png' });
+      const tabs = await browser.tabs.query({ active: true, currentWindow: true });
+      if (!tabs.length || tabs[0].id == null) { showStatus('No active tab ', false); return; }
+      const shot = await browser.runtime.sendMessage({
+        kind: 'capture_full_page',
+        tabId: tabs[0].id,
+        windowId: tabs[0].windowId,
+      });
       const r = await browser.runtime.sendMessage({
         kind: 'upload_attachment',
-        dataUrl: dataUrl,
+        dataUrl: shot.dataUrl,
         filename: 'page.png',
         username: userEl.value,
       });
       noteEl.value += '![Screenshot](' + r.url + ')\n';
-      showStatus('Screenshot attached', true);
+      showStatus('Full-page screenshot attached', true);
     } catch (e) {
       showStatus('Screenshot failed: ' + e.message, false);
     } finally {