Microsoft issues Fix It for IE vulnerability
Microsoft has released a quick fix for a vulnerability in older versions of its Internet Explorer browser that is actively being used by attackers to take over computers.
We have updated Security Advisory 2749920 to include the Fix it we discussed in Saturday’s blog post. This easy, one-click Fix it is available to everyone and prevents the vulnerability from being used for code execution without affecting your ability to browse the Web. Additionally, applying the Fix it does not require a reboot. While we have still observed only a few attempts to exploit this issue, we encourage all customers to apply this Fix it to help protect their systems.
BOLD emphasis mine.
Even if you use another browser, this Fix it should still be applied.