Beginning with two Tuesday updates, all future iterations of Mozilla's Firefox browser will check for at least some outdated plug-ins, the company has announced. Firefox 3.5.3 and 3.0.14 will both scan for the latest version of Flash, prompting users to visit a link where an updated plug-in can be downloaded. "For now, our focus is on the Adobe Flash Player both because of its popularity and because some studies have shown that as many as 80 percent of users currently have an out-of-date version," says Firefox security team member Johnathan Nightingale.