Mozilla is preparing to release Firefox 65 by the end of January, which is in the beta phase of December.
A stable version of Firefox 65 for Android began to appear a few days earlier. The latest version of the browser will be available for Windows, Mac and Linux.
Firefox 65 adds support for the WebP image format created by Google and should offer better compression from PNG or JPEG format, with the same image quality in files that are smaller than 25 to 34 percent. There's also better support for the AV1 video codec, with compression up to twice as effective as H.264.
The Google Chrome browser already supports both formats, while Microsoft Edge supports WebP and has beta support for AV1 (via optional browser extension).
Other changes to Firefox 65 include Handoff on Mac (allows you to continue to search on iPhone and iPhone where it crashes on Mac), simplified content blocking options, security enhancements for Linux, Android, and Mac users, and more.