STR: Open Scratchpad, put the cursor after the beginning slash character, press space, and then backspace. Now, only the first line is green. Clicking on any of the other lines in the comment makes it green.
Filed upstream: https://bugs.eclipse.org/bugs/show_bug.cgi?id=358481
This bug has been fixed upstream. Thanks Ehsan and Kevin for your bug reports!
This is now fixed. Bug 692807 landed.
VERIFIED on Build identifier: Mozilla/5.0 (X11; Linux i686; rv:10.0a1) Gecko/20111107 Firefox/10.0a1