I think the DownThemAll! addon in the IceCat addon list may not be free despite its free license. Upon installation and restarting of IceCat, the addon forces a license agreement window (you can find the text of user agreement window atteched) with "Accept" and "Decline" options. Declining the agreement pops a warning of "Declining will cause DownThemAll! to be uninstalled. Continue?" and, if you proceed, the addon gets uninstalled. [WARNING: When I proceeded with the uninstallation after the warning, the IceCat crashed with no session history saved. Be aware of this if you plan to recreate this situation.]
I suspect that this "agreement requirement" may prevent the addon from being free although the context of the agreement doesn't impose any extra restrictions. If this is the case, then there needs to be an additional testing procedure of the screening for the free addon list. Ali
downthemall_eula
Description: Binary data
-- http://gnuzilla.gnu.org
