A firefox security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: firefox-100.0-2.fc34

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2022-0f15da474c
2022-05-08 02:01:08.297744
--------------------------------------------------------------------------------

Name : firefox
Product : Fedora 34
Version : 100.0
Release : 2.fc34
URL :   https://www.mozilla.org/firefox/
Summary : Mozilla Firefox Web browser
Description :
Mozilla Firefox is an open-source web browser, designed for standards
compliance, performance and portability.

--------------------------------------------------------------------------------
Update Information:

- Fixed h.264 video playback over va-api
(  https://bugzilla.mozilla.org/show_bug.cgi?id=1762725) ---- - New upstream
version (100.0)
--------------------------------------------------------------------------------
ChangeLog:

* Tue May 3 2022 Martin Stransky - 100.0-2
- Added fix for mozbz#1759137
* Mon May 2 2022 Martin Stransky - 100.0-1
- Updated to 100.0
* Thu Apr 28 2022 Jan Horak - 99.0.1-2
- Fixing bookmark install location - rhbz#2054953
* Wed Apr 13 2022 Martin Stransky - 99.0.1-1
- Updated to 99.0.1
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2022-0f15da474c' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys
--------------------------------------------------------------------------------
_______________________________________________