The Mozilla Foundation has issued updates to its Firefox web browser and Thunderbird e-mail client, with critical vulnerabilities fixed in both of them. In addition, there are now three concurrent versions of Firefox.<\/p>\n
The just-released Firefox 5 sees fixes for eight flaws<\/a>, five of which are critical. And Firefox 3.6 sees a half-dozen fixes<\/a>, five of which are critical. In addition, Firefox 5 features Mozilla’s Do Not Track privacy system<\/a>. <\/p>\n Also, as Gregg Keizer points out at Computerworld<\/a>, Mozilla has ended security update support for Firefox 4. Users who need to stay with version 4 for any reason – incompatibility, or simply a business environment that has not yet approved Firefox 5 – will be left with an insecure browser. <\/p>\n Thunderbird 3.1 was also updated with two security fixes<\/a>, one of which is critical.<\/p>\n Users can update their software using the program’s built-in updaters, or can download new versions from the Mozilla website<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":" Updates for all versions of Firefox, and Thunderbird, include critical security fixes.<\/p>\n","protected":false},"author":3,"featured_media":1693,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[13],"tags":[33,56,119,144],"yoast_head":"\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n\t\n\n\n\t\n\t\n\t\n