Corrective release of Firefox 81.0.1, which fixes the following issues:
- disappearance of the content of training courses based on the platform
Blackboard. - An issue with incorrect scaling of Flash content on macOS systems with HiDPI screens.
- with printout.
- problem with setting settings in Windows via GPO (Group Policy Object).
- Show picture-in-picture control buttons for audio-only items.
- An issue that caused responsiveness issues with memory-intensive add-ons such as Disconnect.
- Fixed crash on use , which appears when viewing Google Maps.
- Fixed crash on use .
- crash that occurs when opening tabs when the browser.taskbar.previews.enable setting is enabled.
Additionally, it can be noted in Fedora Linux package with Firefox video codec for video decoding and fdk-aac-free audio codec for AAC audio decoding. The codecs were connected using the GMP (Gecko Media Plugin) API, which made it possible to run the codec in an isolated sandbox environment, similar to how the Widevine CDM DRM plugin is executed.
Support for OpenH264 makes it possible to do without using the ffmpeg package, which is not included in the standard distribution in Fedora and is installed separately from the third-party RPM Fusion repository. At the same time, OpenH264 is used as a fallback, used only if the ffmpeg package is not installed on the system and the requested video format is not supported by the ffvpx library built into Firefox.
Also on the activation by default in the package with Firefox 81 for Fedora of support for hardware-accelerated video decoding using the VA-API (Video Acceleration API) in sessions based on WebRTC technology used in web-based video conferencing applications. In addition, the ability to apply acceleration through the VA-API in X11 server-based environments, not just Wayland-based environments.
Source: opennet.ru