Just to gather some data/run some quick exclusion tests:
* If you disable the extensions on the computer you're having problems with, does the problem go away?
* If you only disable LJLogin, does the problem go away? (We have had many, many reports of LJLogin causing all kinds of grief in various ways -- if you're looking for something that will easily let you log in/log out as various accounts, I strongly strongly recommend CookieSwap or a similar full-cookie-profile-swapping extension, instead of LJLogin, until we can do the main/alternate account system we've been planning for a while!)
* Just to clarify (since your comment could've been taken one of two ways) -- is the affected computer the one that Chrome works on, or is that a different computer? In other words: do you have the same problem expanding threads in other browsers on the computer that's having the problem expanding threads in Firefox?
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* If you disable the extensions on the computer you're having problems with, does the problem go away?
* If you only disable LJLogin, does the problem go away? (We have had many, many reports of LJLogin causing all kinds of grief in various ways -- if you're looking for something that will easily let you log in/log out as various accounts, I strongly strongly recommend CookieSwap or a similar full-cookie-profile-swapping extension, instead of LJLogin, until we can do the main/alternate account system we've been planning for a while!)
* Just to clarify (since your comment could've been taken one of two ways) -- is the affected computer the one that Chrome works on, or is that a different computer? In other words: do you have the same problem expanding threads in other browsers on the computer that's having the problem expanding threads in Firefox?