Mozilla developers are keeping up the pace on the development of their next-generation Firefox 3.0 browser with the Alpha 3 release, adding more under-the-hood improvements to security and its offline capabilities.
Alpha 3 includes support for animated PNG graphics which is to be considered to be more scalable then either GIF or JPEG, and does not have the same patent issues.
A number of new security-related enhancements are added, for example: Support for cookie attribute called “HttpOnly”.
A warning for reloading (refresh) is added in the preferences.
Steps are taken to help fix the off-line problem with support for the new off-line resource tag, which will ensure browser resources are available for cached content even when the browser is not connected to the live online resource.
Firefox 3.0 is expected to be generally available as a final release in November.