On starting Firefox 4RC get unresponsive script error message.
Error messages occurring when starting Firefox
WARNING: Unresponsive script
A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script:Chrome://tavgp/content/libs/include.js:595
Wšykne wótegrona (1)
Try disabling the AVG extension shown in Tools > Addons > Extensions.