Mozilla Thunderbird - Set custom(HTML) Text Color for Write(Compose) permanently

In Mozilla Thunderbird, normally we can change write(compose) window Text color by picking color from Text Color window or we can give any costume color by putting HTML color code or String name. But this color will only effect the current Write window. Next time Text color will be the default color. But we can set permanent Text Color through the Menu Tools->Options. Select composition tab from Options Window. Select Text Color in HTML option of General Tab. Color which you selected from this option is permanently set for all Write window. But unfortunately we can't provide custom Color on this option.If you still need to provide a Custom Text Color for all Write window then you have to follow these steps on your risk.

1) Select Options from Tools Menu
2) Select General Tab under Advanced Tab of Option Window
3) Click Config Editor button
4) Click on "I'll be careful, I promise!" in about:config windows warring message to continue
5) Type Text and Hit Enter in about:config window Search box 
6) Double Click on "msgcompose.text_color"
7) Enter you Custom Text Color HTML Code in msgcompose.text_color box and Click OK Button
8) Close the about:config and Pick a new Write window and Type some text and check your Text Color
This will set your custom Color as Default Text Color for Write Window