diff --git a/archivebox/plugins/chrome/on_Crawl__30_chrome_launch.bg.js b/archivebox/plugins/chrome/on_Crawl__30_chrome_launch.bg.js
index f21666c1..408c0062 100644
--- a/archivebox/plugins/chrome/on_Crawl__30_chrome_launch.bg.js
+++ b/archivebox/plugins/chrome/on_Crawl__30_chrome_launch.bg.js
@@ -215,7 +215,25 @@ async function main() {
                     const manifestPath = path.join(ext.unpacked_path, 'manifest.json');
                     if (fs.existsSync(manifestPath)) {
                         const manifest = JSON.parse(fs.readFileSync(manifestPath, 'utf-8'));
-                        const manifestName = manifest.name || '';
+                        let manifestName = manifest.name || '';
+
+                        // Resolve message placeholder (e.g., __MSG_extName__)
+                        if (manifestName.startsWith('__MSG_') && manifestName.endsWith('__')) {
+                            const msgKey = manifestName.slice(6, -2); // Extract key from __MSG_key__
+                            const defaultLocale = manifest.default_locale || 'en';
+                            const messagesPath = path.join(ext.unpacked_path, '_locales', defaultLocale, 'messages.json');
+                            if (fs.existsSync(messagesPath)) {
+                                try {
+                                    const messages = JSON.parse(fs.readFileSync(messagesPath, 'utf-8'));
+                                    if (messages[msgKey] && messages[msgKey].message) {
+                                        manifestName = messages[msgKey].message;
+                                    }
+                                } catch (e) {
+                                    console.error(`[!] Failed to read messages.json: ${e.message}`);
+                                }
+                            }
+                        }
+
                         console.error(`[*] Looking for match: ext.name="${ext.name}" manifest.name="${manifestName}"`);
 
                         // Find matching extension from page by exact name match first
diff --git a/archivebox/plugins/twocaptcha/tests/test_twocaptcha.py b/archivebox/plugins/twocaptcha/tests/test_twocaptcha.py
index 2e3e6d9d..fd06cde5 100644
--- a/archivebox/plugins/twocaptcha/tests/test_twocaptcha.py
+++ b/archivebox/plugins/twocaptcha/tests/test_twocaptcha.py
@@ -142,13 +142,18 @@ def launch_chrome(env: dict, chrome_dir: Path, crawl_id: str):
     )
 
     cdp_url = None
+    extensions_ready = False
     for _ in range(30):
         if process.poll() is not None:
             stdout, stderr = process.communicate()
             raise RuntimeError(f"Chromium failed:\n{stdout}\n{stderr}")
         cdp_file = chrome_dir / 'cdp_url.txt'
-        if cdp_file.exists():
+        ext_file = chrome_dir / 'extensions.json'
+        if cdp_file.exists() and not cdp_url:
             cdp_url = cdp_file.read_text().strip()
+        if ext_file.exists():
+            extensions_ready = True
+        if cdp_url and extensions_ready:
             break
         time.sleep(1)
 
@@ -157,13 +162,6 @@ def launch_chrome(env: dict, chrome_dir: Path, crawl_id: str):
         stdout, stderr = process.communicate()
         raise RuntimeError(f"CDP URL not found after 30s.\nstdout: {stdout}\nstderr: {stderr}")
 
-    # Wait for extensions.json to be written (chrome launch hook parses chrome://extensions)
-    extensions_file = chrome_dir / 'extensions.json'
-    for _ in range(15):
-        if extensions_file.exists():
-            break
-        time.sleep(1)
-
     # Print chrome launch hook output for debugging
     import select
     if hasattr(select, 'poll'):