Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code.

For the stable distribution (buster), these problems have been fixed in version 78.4.0esr-1~deb10u2.

We recommend that you upgrade your firefox-esr packages.

For the detailed security status of firefox-esr please refer to its security tracker page at: \ https://security-tracker.debian.org/tracker/firefox-esr