I'm also going to lock this topic at this point. I went "down the rabbit hole" of discussing how to use Firefox with it's tweaked settings, which really has nothing to do with NVDA proper. If something else happens to come up with regard to Firefox itself, please start a new topic on the Chat Subgroup.
Brian - Windows 10 Pro, 64-Bit, Version 2004, Build 19041
It’s hard waking up and realizing it’s not always black and white.
~ Kelley Boorn