Diễn đàn hỗ trợ Firefox

There is a setting to disable updates and let me decide when to update.

That is great, but how do I disable update notifications from appearing in general?

Every time I open the browser, I get a pop up notification twice letting me know there is a new update.

I am having trouble downloading documents. They never finish loading and if they do I cannot download them to a file. Also when I exit firefox it isn't closing correctly. It brings up the last session. It keeps telling me it is still running even though I am exiting.

mozilla keeps crashing almost on every website (says the tab has crashed). I checked, mozila is up to date, all extensions removed, no viruses or spyware, and it is crashing in troubleshoot mode as well.

Also few times a day says "your device ran in to a problem and needs to restart). Please advise what to do? Here is a submitted crash reports:

p-878c606d-9511-4e2d-8463-5bcd40260113 13-Jan-26, 11:02 View bp-b92cc3c4-aa94-4a34-b0e3-bbb4a0260113 13-Jan-26, 11:02 View bp-a923ab00-9c5a-497d-b879-5849a0260113 13-Jan-26, 11:02 View bp-bd9b3fd4-9e88-43de-84d4-8b6210260113 13-Jan-26, 11:02 View bp-ed987df9-1563-4285-a6c3-da7290260113 13-Jan-26, 11:02 View bp-5d3d4a2e-6a35-41e3-b00e-0e8b60260113 13-Jan-26, 11:02 View bp-40bfaa75-2f10-4b5a-8d8c-b593d0260113 13-Jan-26, 11:01 View bp-8ddae55f-953d-48bc-ab42-6c21f0260113 13-Jan-26, 11:01 View bp-55bec64b-f2cf-4dd3-8cc4-2201b0260113 13-Jan-26, 11:01 View bp-c0805bea-737b-48de-ac3c-698550260113 13-Jan-26, 11:01 View bp-dc39e12a-d135-409c-b7ff-2f7440260113 13-Jan-26, 11:01 View bp-98bb14f4-55ba-4791-8958-924830260113 13-Jan-26, 11:01 View bp-6d26a731-7b7e-4487-a929-ec6970260113 13-Jan-26, 09:28 View bp-f056e88d-b117-41e7-92ce-6b0cb0260112 12-Jan-26, 16:07 View bp-613d6f88-4ac7-4586-9b6e-c0d6c0260112 12-Jan-26, 16:06 View bp-7220e233-4a4b-408f-b2ff-82a540260112 12-Jan-26, 16:05 View

Context

While playing YouTube videos in Firefox, intermittent crackling appears after a few minutes of playback. This report documents detailed testing that demonstrates the issue is not related to the DAC, USB interface, or system hardware, and is exclusive to Firefox.

2. System Configuration

CPU: AMD Ryzen 5 5600X @ 43 °C

RAM: 64 GB DDR4 dual-channel (16-20-20-38 @ 1572 MHz)

Motherboard: ASRock X570 Phantom Gaming 4 (AM4) @ 54 °C

GPU: NVIDIA GeForce RTX 3050 (audio drivers disabled, audio hardware off)

Monitors: LG HDR WFHD 2560x1080@60Hz and IPS236 1920x1080@60Hz

Storage: Multiple SSD and HDD SATA drives (500 GB – 2 TB)

Audio: Realtek High Definition Audio disabled; iFi nano/UNO DAC connected via USB with power filtering, using Exclusive Mode / ASIO

3. Tests Performed 3.1 DAC and USB Validation

Continuous playback of PCM 384 kHz/24‑bit and DSD256 via Roon/ASIO.

Duration: over 25 minutes of uninterrupted DSD256 playback.

Result: no crackling, pops, or errors.

Conclusion: DAC, firmware, USB cables, ports, and power supply are fully operational; heavy data load does not cause errors.

3.2 Browser Comparison

Chrome (YouTube, identical conditions): continuous playback without crackling.

Firefox (YouTube, identical conditions): crackling progressively appears minutes into playback, temporarily disappearing when the video is paused.

3.3 Isolation of Variables

USB motherboard ports and original drivers fully tested.

GPU audio drivers and hardware disabled.

Windows Shared Mode off, Exclusive Mode enabled.

Predefined audio formats set according to DAC preferences.

USB power management disabled.

DAC temperature stable; no overheating observed.

4. Technical Conclusion

Hardware: DAC, USB, cables, power, firmware, and GPU are not the cause of the crackling.

Operating System: Windows 11 is correctly configured; Exclusive Mode / ASIO works without errors.

Browser: Firefox is the only element consistently reproducing the issue.

Most Likely Cause: Firefox’s buffer management and audio sandboxing interacting with Windows, causing intermittent interruptions in audio flow.

Summary: All hardware and OS factors have been tested and validated: DAC, USB, cables, power supply, firmware, GPU, and temperature do not produce crackling. The only consistent factor is Firefox, making this a software-bound issue.

Engineering Note: This diagnosis conclusively demonstrates that the intermittent audio crackling on YouTube is caused exclusively by Firefox on Windows 11, independent of DAC or USB hardware. The issue should be investigated at the browser level, specifically how Firefox handles continuous digital audio streams and buffers on Windows.

Hi, Just looking into using Tab Groups. I can create a group, add or delete tabs from it, and the Save and Close Group. This Group is then visible to re-open from the List All Tabs option.

That is Great.

However, if I close Firefox, and re-open it, then that tab group has disappeared from the List All Tabs option.

Is that correct, or am I missing a setting somewhere ?

I was sent an email so I could reset my password, and Firefox said I was using windows 10, when in fact I'm using windows 11, unfortunately. Is this a bug? What gives?

Mozilla's business model of not providing actual technical support for Firefox is the reason I will look for other browsers to use. If enough users avoid Firefox, their advertising revenues will dry up, and they will either go out of business, or start caring about their users. This is a horrible, unsustainable business model. business model.

Despite having the setting "Ctrl+Tab cycles through tabs in recently used order" selected, CTRL-Tab has suddenly stopped cycling tabs in the most recently used order. Firefox behaves as if the setting is disabled. This is the third time I've experienced this issue in the past year, and every time the only solution that worked was to create a new profile. It is exhausting to get a new profile back to exactly how the old profile was, and it's something I shouldn't have to do.

Scenario: I am on Windows 11 (though I think this has also happened to me on Windows 10), currently using version 146.0.1 (though this has happened on previous versions). CTRL-Tab cycles in the most recently used order just fine for several months, then it suddenly doesn't—this happens in the middle of an active session, i.e., not after a restart of the browser nor the computer itself. I have four add-ons, none of which control tab cycling, nor have I added/removed any add-ons nor changed any of their settings since their initial installation many months ago.

What I've tried:

• Disabling/re-enabling the setting (even though it is already checked)
• Disabling/re-enabling the config browser.ctrlTab.sortByRecentlyUsed
• Restarting Firefox normally
• Restarting with add-ons disabled—note that the issue persists even with add-ons disabled
• Disabling the setting, then restarting Firefox, then re-enabling the setting
• Restarting the computer

It's the same thing described in this Reddit thread. What else can I try?

Hi I used to have my tabs on the computer when I turned it back on and now I don't. I also cannot find how to set the computer to do this. Can I get some assistance on this matter. Please email me with the instructions at [edited email from public community support forum] / Thank you. Sherril

When trying to access Facebook via the Firefox browser, the browser screen immediately grays-out and freezes? It is the only web site doing this, and it doesn't happen with other browsers. I have attempted to contact Mozilla technical support and their only response is to refer me to a forum, instead of providing actual technical support. I have reinstalled Firefox, I have created a new profile, I have cleared my browser history, emptied the cache, etc., yet this problem persists. How do I get actual, real Mozilla technical support from Mozilla for help with this issue, instead of being referred to a forum, or do I just not use your product due to lack of actual customer support? How do I contact an actual person at the Mozilla corporate offices about lack of real Mozilla customer support?

I have selected Microsoft Bing and DuckDuckGo tabs to be open when starting Firefox. With Microsoft Bing as the primary. However, Bing only displays a gray screen with a search bar, but doesn't work. I am using Windows 11.

Hi Mozilla Community,

I am running Firefox on Windows 11 and I'm encountering a strange issue regarding the UI updates.

The Issue: My Firefox browser updates automatically to the latest version. However, my Default Profile is visually stuck on the old UI design. It does not reflect the recent interface changes associated with the update.

The Troubleshooting Context:

• I have verified that the browser itself is technically updated (via Help > About Firefox).
• The strange part: I have other Firefox profiles on this same machine. When I launch those profiles, they correctly display the new, updated UI.
• This issue is isolated strictly to my main/default profile.

Has anyone experienced this mismatch where the version number is correct, but the UI fails to refresh on a specific profile? Is there a specific fix for this?

Thanks in advance for the help.

Je n'arrive plus à marquer les pages d'un site que j'ai ouvert et que je veux conserver. Je constate cette anomalie depuis quelques jours seulement: qu'est-ce qui ne marche plus?

Unfortunately, Fusion does not work properly with the new Firefox. Firefox cannot be controlled using shortcuts such as H-headlines, E-input fields, B-button, insert+F7-link list, and insert+F6-heading list. Also, on most pages, you can't use Jaws controls like word-by-word reading or paragraph-by-paragraph reading, which is really limiting, especially with Outlook online. In Firefox 146, Jaws usually only recognizes the whole email as an image, and reading aloud only works if you use the mouse and navigate line by line, which is really hard if you're visually impaired. Since I don't want to give up Firefox permanently and am forced to switch to another browser, I am trying to get feedback to see if a solution can be found in the future so that I can continue using Firefox. If I notice any more errors, I will contact support again for assistance.

Best regards, Björn

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