|注册时间||June 24, 2011|
This is something I searched for a long time!
However, the default symbols "<<<" and "<" for "mails just for me" and "list mails" should be exactly the other way round: more "<" signs for more recipients.
I found out that Shadow912's version can be used without change in Firefox 6 (and probably also in future versions) by using Mozilla's "Add-on Compatibility Reporter": https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/ .对这个附加组件，此用户曾发表过1个评价。
I have enabled Shadow912's version for Firefox 5.0.*, you can get it here: