For some reason, Firefox started to display a blinking cursor, like web pages I have been viewing were editable. Thinking that some errant plugin was causing this behavior, I manically disabled a few I had recently installed. However that didn’t fix the problem.
Good ole Google to the rescue.
Firefox has a ‘feature’ that lets you select text with more visual feedback. I guess the little one must have been hitting keys and turned this on.
Turning it off is easy! Press F7 to turn off caret browsing.
Alternatively, type “about:config” in the URL area, then filter for “caret“. Change accessibility.browsewithcaret to “false”.