[ubuntu] firefox hangs after/on creating VPN tunnel

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http://ubuntuforums.org – after allowing update manager to find all updates and update all i am no longer able to VPN into my desktop at work for remote working via firefox.i have tried a few things from firefox perspective and getting no where. i did look thru the update manger when allowing and did not notice anything directly mentioning firefox...tried the same from chrome - chrome cannot see java (ensured only one version is installed..) not urgent but annoying.. ubuntu lucid/ firefox 3.6.24 / java 6.0_30 (Hardware)