Set command checked attribute to "false", don't remove.
Set command checked attribute to "false", don't remove.

Fixes #1611

the8472/greasemonkey,Ventero/greasemonkey,the8472/greasemonkey,Martii/greasemonkey,Ventero/greasemonkey,HasClass0/greasemonkey,HasClass0/greasemonkey,Martii/greasemonkey