when i am logged there is no way to add me to the CC list because the button is only shown when not logged. this is probably related to the bug 966
guess i didn't make myself clear when what is not present. while not logged there are three buttons (Add Comment, Add Me to CC List and Remove Me from CC List), but when logged the button "Add Me to CC List" is missing and therefore if you want to be notified for that bug you need to : 1) logout 2) go to bug number 3) click on "Add Me to CC List" or add yourself to CC field and click submit while logged. i guess that the having an "Add Me to CC List" button is highly more intituitive and should be the preferred way if it also "posts" the comments.
*** Bug 966 has been marked as a duplicate of this bug. ***
You don't have to log out. You can just add your email address to the Cc: field, and push "Save Changes". But I agree a shortcut fot this particular change would be handy when logged in too. It's the most common change I do to other people's reports. I support this enhancement suggestion. I've taken the liberty to lower the priority somewhat though. :-)
See also http://bugzilla.mozilla.org/show_bug.cgi?id=34488
Nowdays, there is a checkbox "Add Me to Cc List". So I guess this is fixed by now, right?