Recently I tried wmii (for a few minutes :P) and notice that if I press bloq.mayus I was able to use alt-1, alt-2 to change between the tabs in firefox.
This makes me think that we can probably take the same idea for dwm to make it ignore the keybindings. Maybe we can also let configurable this bloq. key in config.h and use any other locked key for this. --pancake