Plug-ins: Visit the Firefox plug-in update check page.
Download and install any available updates. Here is a list of everything you should update: Firefox: Click the Firefox menu, point to Help, and select About Firefox. Mozilla recommends updating the software on your system if Firefox is crashing. The browser has been updated to sub-version 3.0.4, with several security patches, bug fixes and localization features. Mozilla released an update to its latest web browser, Firefox 3. I opened Firefox today and it said there was an update (64.0.2). New versions of Windows since 2009 have included support for the key media formats, such as H.264 and AAC, that QuickTime 7 enabled.