I found this cool firefox extension that writes bbcode from the context menu. It allows you to use:
Clipboard 1. quote 2. image 3. make url 4. make url selection
bold
italic
underline
size
color
code
quote select
all from your context menu! here’s the link: http://update.mozilla.org/extensions/moreinfo.php?id=128&vid=196&category=Miscellaneous
though I"ll admit it does have a ugly icon