Mozilla today made available version 17 of its Firefox desktop browser, bringing a number of functionality fixes and security upgrades. The upgrade brings an improved Awesome Bar experience with larger icons, revision of the Social API and support for Facebook Messenger, and click-to-play blocklisting to prevent vulnerable plugin versions from running without user permission. The version update brings one major exclusion, though: it drops support for Mac OS X 10.5 Leopard.
back in early October that Firefox 17 would see the end of support for Macs running Leopard. The group bases changes in supported operating systems on trends in the industry, and it says that the cessation of Leopard support will allow it to free up resources for new Mac features like Native Full Screen support and new Mac accessibility tools.
The new version of Firefox can be downloaded
at Mozilla's page.