With this release, Mozilla has fixed the 'CVE-2020-15999: Heap buffer overflow in freetype' vulnerability in Firefox Linux and Android versions.įor a complete list of security updates in Firefox 83, you can visit Mozilla's security advisories. This vulnerability, though, affected any software that utilizes Freetype, including Mozilla Firefox. In October, Google Project Zero disclosed a zero-day vulnerability in Freetype used in active attacks against Google Chrome. Mozilla has also fixed 21 vulnerabilities in Firefox 83, including a zero-day discovered by Google Project Zero. HTTPS-Only Mode setting Zero-day Firefox vulnerability fixed If HTTPS-Only mode is enabled, Firefox will rewrite any URLs that you are visiting to their secure equivalent, as illustrated below. With the release of Firefox 83, Mozilla introduces a new 'HTTPS-Only mode' that automatically modifies URLs so that they use a secure HTTPS version. If the links above haven't yet been updated to download Firefox 83, you can manually download it from Mozilla's FTP release directory.īelow you can find the major changes and improvements in Firefox 83 - if you want to read the full release notes, you can do so here. You can download Firefox 83 from the following links:

With the release of Firefox 83, all other Firefox development branches have also moved up a version bringing Firefox Beta to version 84 and the Nightly builds to version 85.

The browser will automatically check for the new update and install it when available. Windows, Mac, and Linux desktop users can upgrade to Firefox 83 by going to Options -> Help -> About Firefox. Mozilla Firefox 83 was released today with a new feature called 'HTTPS-Only Mode' that secures your browsing sessions by rewriting URLs to secure HTTPS versions.

Turn off safe mode firefox