pref("extensions.vault-shortcut.exe-path", "");
pref("extensions.vault-shortcut.lastpass-url", "");
pref("extensions.vault-shortcut.browser", "firefox");

@@ -140,15 +140,14 @@
 %22, %22
-firefox
+chrome
 %22);%0A

Change default external browser to Chrome Chrome seems to load the LastPass extension faster than Firefox does.