Filed under, “not sure if I need it – but thanks, just in case” we have Texto. This add-on for Firefox will allow you to launch an external text editor to edit text forms in Firefox.
Here is a little more about the add-on from the Texto developer:
This add-on strips out much of the Mozex functionality to focus on launching external text editors. Features the ability to customize editor behavior for different websites, and uses the asynchronous process support in Firefox 3.6 to update textareas automatically when the external editor is finished, without polling.
You can drag your tabs around and organize them like you want to have them by default. There is no doubt this is one of the more useful features Firefox has put in the browser in some time. What about grouping your tabs by the source? You can’t do that until you pick up the Separate Tabs extension for Firefox.