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Only some videos play without audio, only in Firefox

I've recently done a clean reinstall of Windows 11 and have noticed that, only for Firefox (134.0.2, build ID 20250120135430), a few videos playback without any audio, ye… (funda kabanzi)

I've recently done a clean reinstall of Windows 11 and have noticed that, only for Firefox (134.0.2, build ID 20250120135430), a few videos playback without any audio, yet the same videos play with audio when using edge as a comparison. Most (if not all) of these videos did play with audio in Firefox prior to this reinstall.

Firstly, I'm pretty sure this is not a windows sound mixer issue since many videos on the same page and tab play back with audio just fine in Firefox. The same goes for it not relating to the Firefox setting 'Speaker selection', under (burger) > settings > privacy & security > Permissions because videos of different formats (or using different players) on the same page play back audio fine. The tab is not muted. Again, some videos on the same browser tab play audio fine; some of a particular format or player only play the video, while missing the audio (and where Edge plays the same video with audio).

Another common and potentially relevant issue I've seen is that, this being a 'Windows 11 N" install, it was initially missing the settings > system > optional features > Media feature pack, but that is now something I've successfully added. I should add that windows did report problems when I initially tried to add the media feature pack but, after a very long delay, it eventually appeared to succeed when I ran a couple of DISM incantations that I think ended with - "dism /online /add-capability /capabilityname:Media.MediaFeaturePack~~~~0.0.1.0"

I have the 'Play DRM-controlled content' setting enabled.

Comparing the Firefox vs Edge video playback on this video test page - https://tools.woolyss.com/html5-audio-video-tester/ I get the following results (don't know how to get it formatted/aligned correctly, sorry) -

                           FF vid    FF audio    Edge vid    Edge audio
av1-opus-sita.webm          Works     Works       Works       Works
vp9-vorbis-spring.webm      Works     Works       Works       Works
vp8-vorbis-sintel.webm      Works     Works       Works       Works
avc-aac-nerdist-friends.mp4 Works     MISSING     Works       Works
avc-aac-big-buck-bunny.m4v  Works     MISSING     Works       Works
avc-mp3-sita.mov            Works     Works       Works       Works

And perhaps also relevant is that there's also a difference in the audio-only samples further down the table on the same page -

                   FF audio   Edge audio
audio-sample.mp3    Works      Works
audio-sample.weba   Works      Works
audio-sample.ogg    Works      Works
audio-sample.opus   Works      Works
audio-sample.flac   Works      Works
audio-sample.wav    Works      Works
audio-sample.m4a    FAILS      Works
ac192.mp3           Works      Works
spoonradio-hd.aac   FAILS      Works
audio.opus          Works      Works

Also, every 'v.redd.it' / reddit-video-player video plays the video fine but has no sound when using Firefox but plays both sound and video fine with Edge. Here's one for example - https://old.reddit.com/r/funny/comments/1i7y1nr/rock_paper_scissors/

I've seen lots of similar (but not identical) issues on Firefox video with no audio problems with suggestions a few things to try. In addition to what I've already mentioned above, I've tried the following without success -

- Restarting Windows - Restarting Firefox - Restarting Firefox with addons/extensions disabled - 'about:support' > Refresh Firefox - 'about:support' > Clear startup cache - (hamburger) > more tools > task manager > (click the little profile icon for the page playing the video) - I've checked the settings suggested here: https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues#w_check-some-firefox-settings

I realise it may be possible to side-step this problem by flailing around with more drastic work-arounds like trying a clean re-install of Windows or a full uninstall and clean of Firefox, but that doesn't really help figure out the problem, which leaves the possibility it could easily happen again to me or others when it might be something that can be more properly fixed or guarded against in Firefox itself, so I hope someone can suggest what might be done to home in on identifying the cause of the problem and so learn whether a more precise fix can be employed.

Asked by Ernie_Gurney 3 emasontweni adlule

Last reply by Dave 7 amahora adlule

Mozilla Freezes Mint on Field Autofill

When I attempt to use Firefox autofill for address/credit card/etc, Linux will prompt for Root password. After entering root password, everything freezes. I have no acces… (funda kabanzi)

When I attempt to use Firefox autofill for address/credit card/etc, Linux will prompt for Root password. After entering root password, everything freezes. I have no access to mouse or keyboard and my entire OS become unresponsive. Besides the hangup, my firefox tabs randomly crash as well with the following bug tag: https://crash-stats.mozilla.org/report/index/3020d645-af46-4821-bbfc-e4d680250213. I don't know if the two are related, but both eventually lead my my OS freezing with only hard power down. Every time I try to use autofill, it freezes my OS. I can keep replicating the issue.

Specs:

Linux Mint 21.3 x86_64

Kernal 6.12.13-x64v3-xanmod1

Cinnamon 6.0.4

CPU: AMD Ryzen 5 3600X

GPU: AMD ATI Radeon RX 5600

RAM: TridentZ Neo 64GB

Asked by Dustin 1 usuku oludlule

Last reply by jonzn4SUSE 1 usuku oludlule

don't have sync and save data option

Trying to sync to Firefox on my desktop and it's not giving me the sync and save data option on my phone. How do I sync the too? I want my passwords to update between bot… (funda kabanzi)

Trying to sync to Firefox on my desktop and it's not giving me the sync and save data option on my phone. How do I sync the too? I want my passwords to update between both and it doesn't and it's been an ongoing issue.

Asked by beatnostalgia 3 emasontweni adlule

Last reply by MissG 1 usuku oludlule

Audio clicks when watching YouTube in version 135

Hello, after updating the mobile Firefox to version 135, I encountered a problem. When I start speeding up video playback on YouTube, a clicking sound regularly appears, … (funda kabanzi)

Hello, after updating the mobile Firefox to version 135, I encountered a problem. When I start speeding up video playback on YouTube, a clicking sound regularly appears, as if it’s a micro-stutter in the audio. I uninstalled and reinstalled the browser, and the issue persists even on a clean browser with no extensions. A similar issue also exists in the beta version of Firefox 136 and the nightly version 137, which I installed for testing without making any changes. To check, I installed Firefox 134 again, and the issue does not occur there. My phone, the Tecno Pova 6 Neo, is relatively powerful with an 8-core processor at 2.2 GHz and 8 GB of RAM. Operating system HiOS 14 on Android 14. Could you help me? Thank you.

Asked by vladimir 2 ezinsukwini ezidlule

Love Firefox. Wish it worked!

Online purchases only work on about 50% of the websites I buy on. The most recent one was buying a gift card from Whole Foods. This is becoming so ANNOYING; before I fina… (funda kabanzi)

Online purchases only work on about 50% of the websites I buy on. The most recent one was buying a gift card from Whole Foods. This is becoming so ANNOYING; before I finally switch to another browser, does anyone know how to fix this?

Asked by LAMPERTFAMILY 3 ezinsukwini ezidlule

Last reply by NoahSUMO 2 ezinsukwini ezidlule

Credit Card info does not autofill

This is an exact copy of a question with the same title by Steve Ediger, of August 2022, now archived. Firefox has my credit card information and it shows up in a window… (funda kabanzi)

This is an exact copy of a question with the same title by Steve Ediger, of August 2022, now archived.

Firefox has my credit card information and it shows up in a window when I go to pay for something, but when I click on the credit card I want to pay with, the details appear on the form but get removed almost instantly.

I am in UK. It was working until recently.

None of the earlier answers have helped.

Asked by 2PeterW 3 ezinsukwini ezidlule

Monospace displays Chinese characters incorrectly in Xiaomi devices

In the Android Firefox browser in the Xiaomi device, any Chinese characters in 'monospace' font, including 'code' and 'pre' elements, are rendered in a strange font. This… (funda kabanzi)

In the Android Firefox browser in the Xiaomi device, any Chinese characters in 'monospace' font, including 'code' and 'pre' elements, are rendered in a strange font. This issue does not happen on other browsers like Via Browser on the same device.

Asked by SolidBlock 4 ezinsukwini ezidlule

not able to advance

I do not understand what is the reason I am unable to access my account. I am using the password which I wrote in my password book. What must I do to proceed? Thank you… (funda kabanzi)

I do not understand what is the reason I am unable to access my account. I am using the password which I wrote in my password book. What must I do to proceed? Thank you. Your assistance is appreciated by me.

Asked by Miles Loegering 4 ezinsukwini ezidlule

Temporarily forget master password

Imagine this scenario: I start Firefox and go to a page that requires a login, so I enter my master password. I leave my computer. Somebody else accesses my compu… (funda kabanzi)

Imagine this scenario:

  1. I start Firefox and go to a page that requires a login, so I enter my master password.
  2. I leave my computer.
  3. Somebody else accesses my computer. They can go to any site they want, since Firefox 'remembers' my master password.

How can I protect myself from this? I can close Firefox, I can log off my computer or I can use a screen-saver password.

I would prefer a solution within Firefox, something like a button (possibly under Application Menu → Passwords) to force the master password to be re-entered the next time it is required.

Asked by 2PeterW 6 ezinsukwini ezidlule

update deleted exe file on desktop using Windows 7

I accepted an update to my computer and immediately Firefox could not load, the exe file is missing. Again I use windows 7 . May have lost all passwords and bookmarks. Pl… (funda kabanzi)

I accepted an update to my computer and immediately Firefox could not load, the exe file is missing. Again I use windows 7 . May have lost all passwords and bookmarks. Please advise.

Asked by Litl Dragon 1 isonto elidlule

Last reply by James 1 isonto elidlule

I am trying to login to Facebook and it's answers are in Chinese. I'm in United States & speak English

I'm trying to login into Facebook. All the writing is in Chinese. I'm in United States, I speak English. Can you help? *Hidden email for privacy* Please email. Thank you … (funda kabanzi)

I'm trying to login into Facebook. All the writing is in Chinese. I'm in United States, I speak English. Can you help? *Hidden email for privacy* Please email. Thank you

Asked by Rhonda Shiver 1 isonto elidlule

Last reply by chandu sharma 1 isonto elidlule

unified email box versus i divided email views

I would like to be able to view "only on" email inbox at a time (not the unified) inbox. This is in my Thunderbird email. Desktop works this way and is great. … (funda kabanzi)

I would like to be able to view "only on" email inbox at a time (not the unified) inbox.

This is in my Thunderbird email.

Desktop works this way and is great.

Asked by bpeil49 1 isonto elidlule

Last reply by Yu5tiqX9og 1 isonto elidlule

Website logo not displayed

The logo in the top left-hand corner of my website's landing page does not display using Firefox but is displayed properly using every other desktop browser. Using Firefo… (funda kabanzi)

The logo in the top left-hand corner of my website's landing page does not display using Firefox but is displayed properly using every other desktop browser. Using Firefox, just my name is displayed in place of the logo. Chrome for Android has the same problem but Firefox for Android displays OK. On my iPad both Chrome and Firefox display properly. What are the reasons for this? Is there some upper limit for the dimensions of the logo (mine is oblong in shape)? Do I have some settings that don't suit certain browsers? My site was built using Wordpress/Elementor/OceanWP. Many thanks in advance for an answer!

Asked by tony.melville 1 isonto elidlule

Last reply by cor-el 1 isonto elidlule

Adblocker entfernen

Hallo. ich habe den Adblocker deaktiert und entfernt. Trotdzem scheint er noch im Hintergrund zu arbeiten. Manche Webseiten fordern mich nach wie vor auf den Adblocker zu… (funda kabanzi)

Hallo. ich habe den Adblocker deaktiert und entfernt. Trotdzem scheint er noch im Hintergrund zu arbeiten. Manche Webseiten fordern mich nach wie vor auf den Adblocker zu aktivieren. ich kann deswegen bestimmte Seiten nicht nutzen. Vielen Dank im Voraus für ihre Hilfe. Viele Grüße Gerd Christophersen

Asked by g.christoph.z 1 isonto elidlule

Last reply by jscher2000 - Support Volunteer 1 isonto elidlule

Crashed Tabs

Recently, I've had an issue with your browser on my desktop. I use AOL for my homepage. When I open the browser, it takes a long time to load. When it finally does, somet… (funda kabanzi)

Recently, I've had an issue with your browser on my desktop. I use AOL for my homepage. When I open the browser, it takes a long time to load. When it finally does, sometimes the tab crashes immediately. If it doesn't, I try to open another tab and that will crash. I don't have the problem when I use Edge. Any suggestions? If I remove Firefox and reinstall it, will I get all my favorites back?.

Asked by jjjsev 1 isonto elidlule

Last reply by Paul 1 isonto elidlule