Mozilla developers have released an updated version of their Firefox browser that fixes a number of security issues, four of them rated critical.The update was released late Thursday, and Firefox users should receive the 1.5.0.7 patches via the browser’s automatic update system over the next few days, according to Mozilla.Research firm Secunia rates the flaws as “highly critical,” saying they can be exploited to “conduct man-in-the-middle, spoofing, and cross-site scripting attacks, and potentially compromise a user’s system,” according to an alert. Secunia’s alert can be found here.Web surfers who want to download the Firefox update directly can find it here. In addition to the four critical patches, the software also fixes three less-critical issues and offers some stability enhancements according to the Mozilla website. Details on the security vulnerabilities can be found here.Browser hackers have traditionally focused on Microsoft’s Internet Explorer, but as Firefox’s market share has grown, it has become a more attractive target. Firefox is now used by about 13 percent of Web surfers, according to research firm OneStat.com. It has been a busy week for IT administrators looking to stay on top of security. Important security patches were also released by Microsoft and Apple Computer.On Tuesday, Microsoft released its monthly set of security patches, fixing a critical bug in its Publisher product. The company also rereleased two of its August patches to fix bugs in the updates. More information on Microsoft’s patches can be found here.That was followed Wednesday by Apple’s fix for its QuickTime multimedia software. This update, rated as highly critical by Secunia, fixes six bugs in the product. More details on the QuickTime update can be found on Apple’s website.By Robert McMillan, IDG News Service (San Francisco Bureau)Keep checking in at our Security Feed for updated news coverage. Related content news UK government plans 2,500 new tech recruits by 2025 with focus on cybersecurity New apprenticeships and talent programmes will support recruitment for in-demand roles such as cybersecurity technologists and software developers By Michael Hill Sep 29, 2023 4 mins Education Industry Education Industry Education Industry news UK data regulator orders end to spreadsheet FOI requests after serious data breaches The Information Commissioner’s Office says alternative approaches should be used to publish freedom of information data to mitigate risks to personal information By Michael Hill Sep 29, 2023 3 mins Government Cybercrime Data and Information Security feature Cybersecurity startups to watch for in 2023 These startups are jumping in where most established security vendors have yet to go. By CSO Staff Sep 29, 2023 19 mins CSO and CISO Security news analysis Companies are already feeling the pressure from upcoming US SEC cyber rules New Securities and Exchange Commission cyber incident reporting rules don't kick in until December, but experts say they highlight the need for greater collaboration between CISOs and the C-suite By Cynthia Brumfield Sep 28, 2023 6 mins Regulation Data Breach Financial Services Industry Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe