While one of the lower used browsers on the market, at 8.66% in the US according to StatCounter, Firefox is still a backup browser for many people. The fact that our government is currently urging us all to update, means this is something to be acutely aware of. Jump on this right away and get it fixed! Help / About Firefox, and then it’ll prompt you on that page if it needs attention.
Hackers can take over your computer if you don’t upgrade, and Homeland Security says they’re already doing it.
Browser Market Share:
Found at www.fastcompany.com