IIUC the NoScript license is in conflict with NSCL license, in that NoScript can't be GPLv2 as long as it uses nscl. And the Free Software Foundation's site seems to confirm this -
(emphasis mine)https://www.gnu.org/licenses/gpl-faq#compat-matrix-footnote-3 wrote:If you have the ability to release the project under GPLv2 or any later version, you can choose to release it under GPLv3 or any later version—and once you do that, you'll be able to incorporate the code released under GPLv3.
So is NoScript overdue for being officially relicensed to GPLv3 or GPLv3+?