Can't Disable Firefox Keyboard Shortcuts

I have searched the Roll20 Community forums and have not found any tech issues about this.  I have had many problems with Roll20 on Chrome and had followed advice to try Firefox as there seemed to be a consensus that it worked better.  It does seem to have better audio and video functionality, however, I find I can no longer use Cntl-L for character view (etc.) because it is mapped by the browser.  Firefox does not seem to have a disable function. Any workaround?

Do you have dynamic lighting turned on when you try control + L?  It is only supposed to use the Firefox shortcut when you don't have dynamic lighting turned on for the map page you are on, or you don't have a token selected when you hit that command.  At least, that is the way it works for me...

Yep, that was it.  Thanks!