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when i log into email account o talk talk website i get following message You have undefined new mails in your inbox,have reinstalled old version of firefox and it works okay

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i normally access my emails on talk talk website,since upgrading to firefox 4 now when when i log in i get the following message You have undefined new mails in your inbox, i have replaced version 4 with version 3 of firefox and it works okay,i posted this problem w ith talk talk and do not think it is a website problem. i can still enter email account when i use internet explorer.

i normally access my emails on talk talk website,since upgrading to firefox 4 now when when i log in i get the following message You have undefined new mails in your inbox, i have replaced version 4 with version 3 of firefox and it works okay,i posted this problem w ith talk talk and do not think it is a website problem. i can still enter email account when i use internet explorer.

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have upgraded to version 4.0.1 and it has resolved this problem.