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В Firefox резко пропал звук везде, в ютубе, на сайтах с сериалами и тд, я проверил и в настройках Windows и в настройках Firefox но ничгео не помогло и самое главное что везде на компьютере звук работает кроме всего что в Firefox

Firefox decided to not play any sound on my laptop, Spotify works on itself, if I open it in Firefox it doesn't. Same with YouTube and everything else. I use Artix Linux, I double-booted with Windows and it works on it, just not on Artix for some reason. I have tried to allow acces to it, even redownloaded everything, nothing worked. It's not the biggest problem, since there are subtitles, but it would be good if it worked.

No audio in browser, audio works fine in other browsers, my headphones work fine, my button is not muted. I had to switch to Chrome because of this issue. Tried looking for all possible audio settings but nothing fixes the problem. Everything is like it is suppose to be. Even tried reinstaling mozila firefox - it didn't help. Thanks for help. Saša

Hello Firefox Support Team/Forum

I am writing to request guidance on a hardware video acceleration issue that I have been unable to resolve despite extensive troubleshooting. Firefox appears to be blocking VA-API hardware decoding on my system even though the VA-API stack is confirmed working at the system level. — SYSTEM SPECIFICATIONS — OS: Arch Linux (rolling), kernel 7.0.13-arch1-1 Desktop: Hyprland 0.55.4 (Wayland, DRM backend) CPU: AMD A9-9425 (2 cores, 3.1GHz, Excavator architecture) RAM: 8GB Firefox: installed via pacman (native, not Flatpak) Mesa: 26.1.3-arch1.2 GPU setup (dual): • card0 / renderD128: AMD Stoney R5 Graphics (iGPU) — VA-API confirmed working here • card1 / renderD129: AMD Hainan R5 M435 (dGPU) — used by Hyprland for display output — CONFIRMED WORKING AT SYSTEM LEVEL — Running ‘vainfo’ on the integrated GPU (renderD128) confirms the following profiles are available: VAProfileH264ConstrainedBaseline, VAProfileH264Main, VAProfileH264High (VLD + EncSlice) VAProfileHEVCMain, VAProfileHEVCMain10 (VLD) VAProfileMPEG2Simple, VAProfileMPEG2Main, VAProfileVC1 (VLD) VAProfileJPEGBaseline (VLD) MPV with ‘–hwdec=vaapi-copy’ successfully hardware-decodes H264 locally, confirmed by ‘nv12’ pixel format output and reduced CPU usage. radeontop monitoring card0 (stoney, bus 00) during Firefox video playback shows: • Graphics pipe: ~53% (compositing activity) • UVD row: absent / 0% (no hardware video decode activity) • Memory clock: near 0.00G This confirms Firefox is NOT using the hardware decoder despite VA-API being functional. — FIREFOX DECISION LOG (from about:support) — HARDWARE_VIDEO_DECODING: default available / user force_enabled H264_HW_DECODE: default available (no blocklist) HEVC_HW_DECODE: default available VP8_HW_DECODE: env blocklisted — FEATURE_FAILURE_VIDEO_DECODING_MISSING VP9_HW_DECODE: env blocklisted — FEATURE_FAILURE_VIDEO_DECODING_MISSING AV1_HW_DECODE: env blocklisted — FEATURE_FAILURE_VIDEO_DECODING_MISSING DMABUF_SURFACE_EXPORT: env blocked — FEATURE_FAILURE_BROKEN_DRIVER WEBRENDER_COMPOSITOR: env blocklisted — FEATURE_FAILURE_WEBRENDER_COMPOSITOR_DISABLED Note: VP8/VP9/AV1 being missing is expected and correct for this GPU generation. The concern is that H264, which IS in the vainfo profile list and shows as ‘available’ in the decision log, is still not being routed to the hardware decoder in practice. — ENVIRONMENT VARIABLES IN USE — MOZ_ENABLE_WAYLAND=1 LIBVA_DRIVER_NAME=radeonsi LIBVA_DRM_DEVICE=/dev/dri/renderD128 MOZ_DISABLE_RDD_SANDBOX=1 — about:config SETTINGS CURRENTLY SET — media.ffmpeg.vaapi.enabled = true media.hardware-video-decoding.force-enabled = true media.hardware-video-decoding-vulkan.enabled = false media.rdd-process.enabled = true — WHAT WAS TRIED — 1. Installed full Mesa stack: mesa, libva-mesa-driver, libva-utils, ffmpeg, vulkan-radeon (64-bit and 32-bit variants via multilib). 2. Set LIBVA_DRM_DEVICE=/dev/dri/renderD128 to hardcode VA-API to the stoney iGPU and prevent it from accidentally targeting the hainan dGPU (which fails Firefox’s internal VA-API test with FEATURE_FAILURE_VIDEO_DECODING_TEST_FAILED). 3. Enabled media.ffmpeg.vaapi.enabled and media.hardware-video-decoding.force-enabled in about:config. 4. Disabled MOZ_DISABLE_RDD_SANDBOX via both ~/.bash_profile and hl.env() in the Hyprland Lua config to allow Firefox’s RDD process to access /dev/dri/renderD128. 5. Installed enhancedH264ify extension with VP9 and AV1 blocking enabled. YouTube confirms H264 (avc1.64002a) is being served. Despite this, over 1100 frames out of ~4200 are dropped during 1080p60 playback. 6. Verified with radeontop -b 0 (stoney, bus 00) during active 1080p H264 playback: the UVD block shows no activity whatsoever, confirming the CPU is doing all decoding. 7. Tested with and without gfx.webrender.all = true. Enabling it caused severe visual corruption (texture artifacts, split UI elements), so it was reset to default. 8. Did NOT disable media.rdd-process.enabled (correctly kept at true, as RDD is the process Firefox uses for VA-API decoding). 9. Confirmed Firefox is installed via pacman (not Flatpak), so there is no Flatpak sandbox layer involved. — THE CORE QUESTION — Given that: • vainfo confirms H264 hardware decode is available on renderD128 • H264_HW_DECODE shows as ‘default available’ in Firefox’s own decision log with no blocklist entry • media.hardware-video-decoding.force-enabled is set to true • MOZ_DISABLE_RDD_SANDBOX=1 is set • LIBVA_DRM_DEVICE explicitly points to the correct render node • MPV successfully uses vaapi on the same system …why is Firefox’s RDD process still not routing H264 decoding through VA-API, and what additional steps or logs would help identify the specific internal failure point?

Any guidance on enabling verbose VA-API logging within Firefox’s RDD process, or any known issues with AMD Stoney + Hainan dual-GPU setups on Wayland that might explain the DMABUF_SURFACE_EXPORT FEATURE_FAILURE_BROKEN_DRIVER blocklist, would be greatly appreciated.

Thank you.

updated to 152.0.4 last night now no sounds on web, sounds work when using edge. I can't find any settings in firefox that will turn the sound back on for streaming videos.

For some reason since yesterday, my shortcut on my keyboard (FN+F7) is no longer playing or pausing videos on Firefox. It still works for everything else, so I feel I may have accidentally done something to stop this from working. Any help would be mightily appreciated.

On a website I've been using for years to watch live streams on animals explore.org, I now am getting a screen saying 'Playback isn't supported on this device' but I've not changed any original settings....please help.

https://explore.org/livecams/brown-bears/brooks-falls-brown-bears-low

Hi, after my firefox updated the media buttons from my keyboard only seem to work intermittently with it.

At the moment they don't work when firefox is minimized, but yesterday they didn't work when maximised either.

No problems in Chrome or local media players.

media.hardwaremediakeys.enabled is set to 'true' in about:config

I am currently listed as on version 152.0.3, 64 bit windows.