问题
The problem only happens on Mac:
The 'Test Link' element flashes abnormally when used in a Firefox addon panel (sdk/panel) when compared to the JSFiddle demo despite they share the same source code.
Firefox addon source code: https://drive.google.com/file/d/0BzHBWuszZv5_eWl1RTdIOW84NG8/view?usp=sharing
to run
download and unzip
$ cd CSSFlashing3; cfx run
Is there any workaround to the problem because who knows how long does it take for Mozilla to fix this?
来源：https://stackoverflow.com/questions/29972371/firefox-addon-element-abnormally-flashing-using-css-animation-on-mac