A corrective release of Firefox 89.0.1 is available, which offers several fixes.
- The issue with improper scrollbar functionality on Linux, which occurs when using certain GTK themes, has been resolved.
- Problems with performance and stability of the WebRender compositing system on Linux have been addressed.
- Regressive changes related to fonts have been fixed. The gfx.e10s.font-list.shared setting is enabled by default, allowing for about 500 KB of memory savings for each content processing process.
- In macOS, the issue with screen flickering while scrolling pages on an external monitor has been resolved.
- In the Windows version, the issue affecting screen readers has been fixed.
- A vulnerability (CVE-2021-29968) that leads to reading data from out-of-bounds memory during text rendering in the Canvas element has been addressed. This issue occurs only on Windows when WebRender is disabled.
Source: opennet.ru
