Kantor:
Your lack of connectivity is due to a system or firewall setting. Try IE8 and see if it has the same problem. If it has the same problem, it's a system setting. If not, it's a firewall setting.
Firefox: Firefox doesn't normally crash for anyone here so it's likely you have plugins that aren't working too well (try disabling them to see if it gets better then re-enable them one at a time) or have some bad temporary data so try clearing your cache and temporary files.







