Keyboard shortcut Alt+C is unresponsive after Firefox 136 update

[Brix1330]

Pressing Alt+C does nothing now. I had to hold it, but that also creates multiple temporary tabs. I tested it with a new profile, but the issue persists. The workaround is to change to something else.

[GodKratos]

This seems to be a firefox bug. Possibly there is an undocumented function that the Alt-C command is performing.
I've changed the default keyboard bindings to avoid this.
GodKratos@1bd2bc3 & GodKratos@11737ad

[OutshineIssue]

I'm on nightly 138 and it's working fine, just wait for the update.