Today I found this great new Firefox plugin called Signature . It gives you an option on your right click menu to append custom signatures to any writable area in Firefox.

This is a great plugin for posting custom signatures with links to your blog or bans sites on emails, blog comments or forums. You can create as many signatures as you want and even put html into the entries.

Signatures in blog comments, forum posts and emails are the easiest way to get your url’s out for people to visit. This also increases your search engine rankings by providing links to your blog from other sites.

Example:

https://addons.mozilla.org/en-US/firefox/addon/578