> Every once in a while, the browser detects I'm typing "±±±±±±+..."
Interesting bug! Not exactly following on what triggers the bug. Do you have a ± key on your keyboard (some international one)? Or does it occur after e.g. pressing "+", then "-"? Do you use compose keys? Does it do this randomly?
You could probably set up some keylogging to see if anything special is happening before it, it'd also let you know for sure if it's a keyboard issue or not.
Interesting bug! Not exactly following on what triggers the bug. Do you have a ± key on your keyboard (some international one)? Or does it occur after e.g. pressing "+", then "-"? Do you use compose keys? Does it do this randomly?