Firefox Now The Most Vulnerable Browser?

Where Internet Explorer used to rule the roost, Web security firm Cenzic says Firefox topped the list for total vulnerabilities in the first half of 2009.

The number of security vulnerabilities in Microsoft’s Internet Explorer Web browser were so numerous for so long that it was routinely flagged as the most vulnerable Web browser on the market—in no small part because it was also the most widely-used browser on the market.

However, competitors like Firefox have been gradually eroding Microsoft’s browser share…and now they’re starting to feel more security pressures themselves. In fact, Web security firm Cenzic has just released its application security vulnerability report for the first half of 2009, and guess what browser tops the list? Firefox.

According to Cenzic, some 44 percent of the browser vulnerabilities uncovered in the first half of 2009 were in Firefox. Apple’s Safari Web browser came in second with 35 percent, while Internet Explorer came in third place with 15 percent. Opera managed a fourth place finish with 6 percent of browser vulnerabilities found during the first half of the year.