Mozilla released Firefox 15 today, and it brings a number of interesting changes. First, the browser is finally switching to a "silent" update model, like Chrome. (No doubt in answer to endless complaints about their rapid release cycle.) In addition, Mozilla says they have "now plugged the main cause of memory leaks in Firefox add-ons." Add-ons commonly hold extra copies of sites in memory when they don't need to, and the browser now has a mechanism to detect this and reclaim the memory. Another significant improvement is the addition of native support for compressed textures in WebGL, which is a boost for high-res 3D gaming. Here are release notes for the desktop and mobile versions.