Not work some keybinds in Firefox

[DoctorKnowsBetter]

Greetings, everyone.

It is not possible to reassign word deletion (left/right) in Firefox browser: bindsym --to-code Alt+w exec wtype -M ctrl -k BackSpace -m ctrl bindsym --to-code Alt+d exec wtype -M ctrl -k Delete -m ctrl

Version: world/wtype 0.4-1 [installed]

If there is a solution please help me, this is a terrible pain for me. Thanks in advance to those who care :)