bug when opening yahoo mail

[0BLACK0]

hi guys,

operating system : Ubuntu 10.10
browser : Firefox 4.b7 and 4.b8 both have the same issue
NoScript <= 2.0.8.1

when opening yahoo mail and clicking on Inbox the page doesn't appear instead there is a white page
this issue doesn't happen with Firefox <=3.6.13

thx in advance ...