Firefox updated recently, and now the browser is having problems. I don't know if it's a memory issue or what, but it's slow and things don't always load. My Flash Control add-on is now unreliable, too, and I've turned it off.
I'm getting sick of this company constantly screwing things up. It's like they're trying to drive me into the warm embrace of another browser. And it may happen. I may try one of the Firefox forks again. I tried Pale Moon once, but didn't stick with it. Maybe I'll try Brave or something.