修改Thunderbird回复格式
Thunderbird回复邮件的格式很不好看，而且还是把回复的内容都放在原文引用的下面，用的很不舒服。
下面是对这个使用问题的解决办法：
（1）回复内容放在最前边
英文界面：Edit->Perferences->Advanced->Config Editor->I’ll be careful,I promise->mail.identity.default.reply_on_top 会发现目前的默认值为0，改为1即可。
中文界面：工具->选项->高级->常规->配置编辑器->我保证会小心->mail.identity.default.reply_on_top 将默认值由0为1
（2）安装附加插件：
SmartTemplate的强大之处就是可以直接用html控制邮件的格式，
安装完之后在附加组件里找到它，点“选项”，编辑配置，如下图
首先点选图中所示的几个选项，然后复制如下代码
-------- <FONT face=Verdana size=3>原始信息</FONT> --------
<FONT face=Verdana size=2><b>发件人</b></FONT>: %from%
<FONT face=Verdana size=2><b>日期</b></FONT>: %date%
<FONT face=Verdana size=2><b>收件人</b></FONT>: %to%
<FONT face=Verdana size=2><b>抄送人</b></FONT>: %cc%
<FONT face=Verdana size=2><b>主题</b></FONT>: %subject%
到上图所示的空白处，然后确定即可（完全可以依个人口味进行配置）。
其中，%**%之类的东西是SmartTemplate定义的几个宏，完整宏列表在链接 可以找到，或者见下：
附录：
Reserved words - Common ：
%ownname%
Own account name
%ownmail%
Own mail address
%Y%
Year (1970...)
%m% / %n%
Month (01..12 / 1..12)
%d% / %e%
Day of month (01..31 / 1..31)
%H% / %k%
Hour (00..23 / 0..23)
%I% / %l%
Hour (01..12 / 1..12)
%M%
Minute (00..59)
%S%
Second (00..59)
%p% / %p(x)%
AM or PM, x=1(a.m.)/x=2(A.M.)/x=3(AM)
%A% / %a%
Locale's weekday name (Sunday..Saturday / Sun..Sat)
%B% / %b%
Locale's month name (January..December / Jan..Dec)
Reserved words - Reply/Forward message
%from%
Author
%from(name)%
Author name
%from(firstname)%
Author firstname
%from(mail)%
Author mail address
%date%
Date string (same as mail header syntax)
%datelocal%
Date string (locale format)
%dateshort%
Date string (such as 2000/01/01 1:23:45)
%date_tz%
Time zone (e.g., +0100)
%to%
Recipients(to)
%to(name)%
Recipients name(to)
(mail address, if name is not available.)
%to(mail)%
Recipients mail address(to)
%cc%
Recipients(cc)
%cc(name)%
Recipients name(cc)
(mail address, if name is not available.)
%cc(mail)%
Recipients mail address(cc)
%subject%
Subject
%........%
An any e-mail header(e.g., %Message-Id%, %Newsgroups%, %X-Mailer%, ...)
Reserved words - Additional syntax
{...%reserved word%...}
Phrase enclosed in "{" and "}" is displayed if reserved word has been replaced. Phrase consists of a reserved word and another words.
For example,
To: %toname%{
Cc: %ccname%}
will be replaced as follows, when ccname is not effective, and
To: foo
will be replaced as follows, when ccname is effective.
To: foo
Cc: boo
%X:=sent%
%A-Za-z% is converted to the time the original message was sent.
%X:=today%
%A-Za-z% is converted to today.
Notes about the template with HTML format
Use HTML Escape Characters
" , & , < , > are need to escape by " , & , < , >. And, you can also use other escape characters.
New-line
You need to use <br> for new-line, when 'Replace new-line with <br>' does not used.