Firefox at Risk?

I was quite disappointed, but not surprised, to read about the latest problems with Firefox. Apparently Mozilla have released an update to this Web browser that fixes a dozen vulnerabilities, five of which are critical.

I use Firefox a lot. I moved over to it a couple of years ago following the relentless problems with Internet Explorer. The idea was that as Firefox had a smaller market share hackers would not bother to target it and the code quality should be higher. What am I going to do? Stick with Firefox at the moment but make sure I am fully patched and up to date.