Ctrl+C , Ctrl+V, Ctrl+Z etc are being ignored for input areas for the latest Nightly pentadactyl-20151221.xpi.
My mappings for those are:
map -b -m n,v,i,c,t <C-a> <Pass>
map -b -m n,v,i,c,t <C-x> <Pass>
map -b -m n,v,i,c,t <C-c> <Pass>
map -b -m n,v,i,c,t <C-v> <Pass>
map -b -m n,v,i,c,t <C-z> <Pass>
It works perfectly for pentadactyl-20151220.xpi
Thanks,
Alok