Firefox keyboard shortcut for Run All Chunks Above / Show Command Palette

It seems that RStudio detects that I'm using Firefox and sets the keyboard shortcut for Show Command Palette to Ctrl+Alt+Shift+P but that seems to override the shortcut for Run All Chunks Above.

I noticed that this Firefox-specific shortcut is mentioned in

It seems that Firefox has a built-in Ctrl+Alt+P shortcut to open a Private Window. The original shortcut for Run All Chunks Above was Ctrl+Alt+P so that seems to explain the override.

I imagine other people have had this problem, but I don't see it mentioned anywhere. I realize I could probably set a customized shortcut, but I'd really prefer if the same shortcut would work on all platforms with all browsers.

Thanks for any help.