Hi All! I need some help to nail down the issue with common issue Firefox browser (v117.0 64-bit) video's not playing on my AMD laptop. On Chrome and Edge browser videos do play perfectly. But on Firefox and curiously also on Opera videos keep and stay loading. I havetried all the trivial standard procedures: clearing cache, disabling hardware acceleration, incognito browsing, troubleshooting mode, refreshing firefox, clean install for both regular and developer edition (v118.0b4 64-bit). The behaviour is consistent regardless of website or application (youtube, browser based microsoft teams, https://camendesign.com/code/video_for_everybody/test.html and others) Need to note that the issue has been coming and going over the last couple of years with different versions of Firefox. Also curiously when standard Firefox broke first time I installed the developer edition which worked fine for couple of days and then the videos stopped playing in developer edition too. Then for many months I used chrome to watch youtube. Since automatic updates where turned on for Firefox then at certain point surprisingly videos started to work again (probably some software update fixed the issue) and now it has been broke again for couple of months. Sorry unfortunately I'm unable to list all the version numbers here. When I first started having the issue at some point I googled a setting in about:config the change of which solved the issue, but I can't find this obscure post anymore anywhere. Does anybody have a lead here how to troubleshoot this issue? Help is much appreciated. Thankfully, Priit '''System''' OS Name Microsoft Windows 11 Pro Version 10.0.22621 Build 22621 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Name THINKPADE595 System Manufacturer LENOVO System Model 20NF001HMX System Type x64-based PC System SKU LENOVO_MT_20NF_BU_Think_FM_ThinkPad E595 Processor AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx, 2100 Mhz, 4 Core(s), 8 Logical Processor(s) BIOS Version/Date LENOVO R11ET48W (1.28 ), 10/07/2023 SMBIOS Version 3.1 Embedded Controller Version 1.28 BIOS Mode UEFI BaseBoard Manufacturer LENOVO BaseBoard Product 20NF001HMX BaseBoard Version Not Defined Platform Role Mobile Secure Boot State On PCR7 Configuration Elevation Required to View Windows Directory C:\WINDOWS System Directory C:\WINDOWS\system32 Boot Device \Device\HarddiskVolume1 Locale United States Hardware Abstraction Layer Version = "10.0.22621.1413" Time Zone FLE Daylight Time Installed Physical Memory (RAM) 16,0 GB Total Physical Memory 13,9 GB Available Physical Memory 7,32 GB Total Virtual Memory 22,4 GB Available Virtual Memory 13,3 GB Page File Space 8,50 GB Page File C:\pagefile.sys Kernel DMA Protection Off Virtualization-based security Not enabled Windows Defender Application Control policy Enforced Windows Defender Application Control user mode policy Off Device Encryption Support Elevation Required to View Hyper-V - VM Monitor Mode Extensions Yes Hyper-V - Second Level Address Translation Extensions Yes Hyper-V - Virtualization Enabled in Firmware Yes Hyper-V - Data Execution Protection Yes '''Graphics Drivers''' (updated) APU - AMD Radeon(TM) Vega 8 Graphics - Primary/Integrated VRAM - 2048 MB - DDR4 1200 MHz Graphics - AMD Radeon(TM) Vega 8 Graphics Graphics Manufacturer - Powered by AMD Usable Memory Size - 2048 MB Core Clock - 1200 MHz Memory Type - DDR4 Memory Clock - 1200 MHz Memory Bit Rate - 2.40 Gbps Total Memory Bandwidth - 19 GByte/s BIOS Part Number - 113-PICASSO-117 BIOS Version - 016.002.000.011 BIOS Date - 2019/09/02 02:55 Device ID - 15D8 Revision ID - C2 Vendor ID - 1002 SubSystem ID - 5124 SubSystem Vendor ID - 17AA Bus Type - PCI Current Bus Settings - PCI Driver Version - 23.10.29.06-230817a-395392C-AMD-Software-Adrenalin-Edition AMD Windows Driver Version - 31.0.21029.6002 Direct3D API Version - 12.1 Vulkan™ API Version - 1.3.250 OpenCL™ API Version - 2.0 OpenGL® API Version - 4.6 Direct3D® Driver Version - 9.14.10.01526 Vulkan™ Driver Version - 2.0.270 OpenCL® Driver Version - 31.0.21029.6002 OpenGL® Driver Version - 23.08.230531_53c0013 2D Driver Version - 8.1.1.1634 2D Driver File Path - /REGISTRY/MACHINE/SYSTEM/CurrentControlSet/Control/Class/{4d36e968-e325-11ce-bfc1-08002be10318}/0000 UI Version - 2023.0817.2142.1980 AMD Audio Driver Version - 10.0.1.30 Driver Provider - Advanced Micro Devices, Inc. Windows Edition - Windows 11 Professional (64 bit) Windows Version - 22H2