I use Yahoo! Mail.
If I open it in Windows, all buttons on the screen, for example, "Move" (an email to a personal folder) and "Reply" (to an email received), work properly.
On the other hand, if I open it in Linux, some buttons on the screen, such as the two I've already mentioned, do not work.
Is there a way to try to obtain complete functionality when using Firefox for Linux to open Yahoo! Mail, short of uninstalling Firefox and the Java plugin and reinstalling them?