It adds a small "edit" button at the bottom right of any textbox, which will then let you edit the contents of that box in your favorite text-editor. Works fine in news.yc, gmail, wordpress, etc.
Incidentally, a similarish extension for thunderbird is called "External Editor":
(It's a little annoying to find, download, and install, but it works fine once you do.) It also works great with vim syntax highlighting for emails, with headers and quoted previous emails appropriately colored.
https://addons.mozilla.org/en-US/firefox/addon/4125
It adds a small "edit" button at the bottom right of any textbox, which will then let you edit the contents of that box in your favorite text-editor. Works fine in news.yc, gmail, wordpress, etc.
Incidentally, a similarish extension for thunderbird is called "External Editor":
http://www.kickflop.net/blog/2005/12/22/using-an-external-ed...
(It's a little annoying to find, download, and install, but it works fine once you do.) It also works great with vim syntax highlighting for emails, with headers and quoted previous emails appropriately colored.