Jquery mouse enter event is repeating for FF and IE but not in Chrome

Jquery mouse enter event is repeating for FF and IE but not in Chrome

I am having this weird problem in FF (version: 32.0.3) and IE(version 8). Mouseenter event is repeating (circle animation is being triggered again and again on mouse hover) in FF and IE while chrome and opera circle animation only happens once on mouse hover.

Following is the JS fiddle:

http://jsfiddle.net/mejLb6jj/

Can someone please advise why it is happening and how can I fix this problem?