Firefox Support Forum

For the last few months YouTube appears to have broken CSS and text in multi-line blocks is broken and overlaps. I'd guess this is only for text that auto line wraps. The example screenshot is of a pseudo dialog but the problem is everywhere on multi-line text in YouTube.

I'm running Firefox 124.0.2 (64-bit) on Operating System: openSUSE Tumbleweed 20240419 KDE Plasma Version: 6.0.4 KDE Frameworks Version: 6.1.0 Qt Version: 6.7.0 Kernel Version: 6.8.7-1-default (64-bit) Graphics Platform: Wayland Processors: 32 × 13th Gen Intel® Core™ i9-13900K Memory: 62.6 GiB of RAM Graphics Processor: AMD Radeon RX 6650 XT Manufacturer: Gigabyte Technology Co., Ltd. Product Name: Z790 AORUS ELITE AX

The video from most websites plays out of sequence. It appears that approximately every one second plays its frames in reverse order. This occurs with most video streaming services and major sites. For example, all Amazon, Sam's Club, Walmart and other website product videos. Occasionally, Amazon product videos just say not compatible. However, YouTube videos with very rare excepts play fine in Firefox. Those problem sites play the videos fine under Edge for Linux. But, I would much rather use Firefox. I'm sure this a codec related issue. Possibly related to the NVIDIA GeForce GT 1030 video card in this computer running openSUSE 15.5. But after much searching, I'm at a loss on how to resolve the problem.