Do you like patches? Do you like Firefox? Do you like it when your pet turtle bites your finger off after you keep stuffing your chubby finger in its face?
If you use Firefox as your web browser I suggest you update ASAP. I know patching is a pain but please do so… or don’t if you are feeling adventurous.
“A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw.” – Mozilla