Let firefox support telnet protocol(BBS)

[English Ver.]
    In most case, I'll choose firefox as my browser because it has many convenient plug-ins. Unfortunately, it doesn't support telnet protocol. So, we need to install the telnet plug-in which was made by pcman(famous programer in Taiwan). Here is its install page. Because it is released with xpi formate, firefox will remind you install it directly. But the default setting of firefox will consider this plug-in doesn't fit v3.5 and suspend it. Type "about:config" in address line, and confire the message. Right-click to add two settings, name:extensions.checkCompatibility, value is false ; the other name is extensions.checkUpdateSecurity, and the value is also false. Restart the firefox, type the telnet address(begin with telnet://), and you can also booksmark it just like web pages.