Firefox Community Forum

My computer crashed and then I restarted it to install an update and when I got back on I tried to open Firefox but received the message that said something like "Your Firefox profile can not be loaded. It has been inaccessible or not found". I have no idea what to do, I was able to create a new profile (I had to make a new profile folder because I didn't have a folder in the Firefox folder, just a file that said 'Profiles') just to open Firefox but I don't know how to restore my previous profile. I'm not tech savvy at all and I need help please I don't know what to do I just want my bookmarks and passwords back.

Please let me no why i am not getting able to download the extension what should i do for downloading the extension .my firefox version is also up dated but i am unable to download the extension

Hi, I'm having some issues with Firefox. I'm opening a website (which I usually visit) even slower than with Tor at the same time. I'd love to know why and how to fix it.

When I play any video on https://www.bilibili.com/ this chinese website After finish the video,The Firefox get white screen and crash And this happen every single time, There is nothing I can do The crash log is here: bp-c489f92a-e918-43ba-ab0b-589210240812

hello I have 3 network hardware which all have different internet or ISP I want fire to a specific ISP/network hardware tried using proxy however firefox is still using the wrong ISP/network hardware is there a setting I can use to make firefox use a specific network adapter??

Hello,

We are running Roaming Profiles from our Active Directory architecture. It seems that a lot of files happen to have too long path&filename for example :

\\Serverinfo\Username\AppData\Roaming\Mozilla\Firefox\Profiles\FirefoxUserProfile\storage\default\moz-extension+++f9efba58-d1ae-40d1-993c-f56654dc34c0^userContextId=4294967295\idb\{d1ae6e36-40f7-4f62-88b9...

Do you have any idea to configure Mozilla so we keep it able to handle these filename length ?

We cant use wildcard in exclusions so we cant exclude whats in a subfolder of each profile. It's not supported by ActiveDirectory GPO.

Hope it was understandable please let me know if you need further details.

Regards, Yannick GANTOU

Due to a technical issue, I've deleted Firefox and re-downloaded it. However, the SHA hash doesn't match. shasum -a 256 [path]/Firefox 134.0.2.dmg shows a hash of:

c87eade89ddf5d1996766840809b5d415d91ecb696326b4f1f92210200978d21

but that hash doesn't show anywhere on https://releases.mozilla.org/pub/firefox/releases/134.0.2/SHA256SUMS

mac/en-US/Firefox 134.0.2.dmg shows a SHA sum of:

7832a8d1e1a13322dec1b52d32e1e64d2b6254de8348575f2d22af4975d56a85

which is completely different.

I re-downloaded it, this time from https://www.mozilla.org/en-US/firefox/all/desktop-release/osx/en-US/, and this time the SHA sum is:

47e1c3b84e79d331842ccf994be56cd423126eaca6acfd1664d668cf48f98de0

which is yet different, and is also not found on https://releases.mozilla.org/pub/firefox/releases/134.0.2/SHA256SUMS

What's going on? Why can't I get a matching SHA sum?

i can't get firefox.com/pair to show on my desktop.

I have just reinstalled MS Word on both PC & phone, (as something has gone wrong with my somewhat elderly PC). My phone (Samsung) says to connect mobile device with my Mozilla account, then I need to open Firefox on the PC, visit Firefox.com/pair, and follow the instructions to connect the mobile device.

I can't find firefox.com/pair on the PC.

"Is there a way to disable or limit automatic tracking of websites in Firefox? I want to ensure better privacy without affecting my browsing experience. Any tips or extensions that can help?"

This will get you helpful insights from others who might have similar privacy concerns.

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s crucial to update to Firefox 128 or newer to avoid issues with add-ons, DRM-protected content, and other features.

For full details, check out Update Firefox to prevent add-ons issues from root certificate expiration.

If you have questions about the update or need help with the process, this is the place to ask! Whether you’re just starting or you’ve already updated and want to share your experience, we’d love to hear from you.

Let’s come together, share tips, and ensure we’re all prepared. Drop your questions or insights below!

I am in cape Verde and using Exprees VPN. I cannot access BBC iPlayer with Firefox (my default browser). But I can access it with safari. I am on a MAC laptop (Sonoma)

Hello,

So, I got the "Restart to keep using Firefox message" while working to make sure that certain HIPPA protected data. I cannot close out of the browser because I am in an incognito window.

Is there a way to pause the message or can I only prevent it by disabling automatic updates?

P.S. So I work in the very sensitive part of Data Engineering e911 that deals with medical patient reports that given ONLY to the doctor at the hospital when the fire department drops you off at a Hospital. Because of extremely sensitive nature some of the specific report fields, I am not longer legally allowed (by HIPPA as old as the law is) to use browsers like chrome. So, I have to use browser like Firefox that are still in compliance. I want Firefox to update, but I want to choose when it updates (on the first weekend when there is a national fire or storm disaster happening... which technically will be this first Saturday since the update on the 15th).

I can't seem to update to the latest version of Firefox.

Steps on macOS 15.2: 1. In previous version of Firefox, get dialog to update to current version of Firefox 2. Click Restart to update Firefox. 3. Enter admin user name and password to allow Firefox to install a helper 4. Got a request to let Firefox access my devices. My devices are not Firefox's business, so I replied Don't allow. Note: 3 and 4 may have been swapped.

Expected result: Get a dialog that Mozilla corp has installed something; Firefox relaunches with the new version

Actual result: Get a dialog that Mozilla corp has installed something

Attempted workaround:

5. Click Firefox icon in the dock

Expected result: Firefox launches

Actual result: Get dialog asking me to enter admin user name and password to allow Firefox to install a helper.

6. I do so.

Expected result: Get a dialog that Mozilla corp has installed something; Firefox relaunches with the new version

Actual result: Get a dialog that Mozilla corp has installed something

Attempted workaround:

7. Click Firefox icon in the dock

And I get a strange feeling of deja vu as the process repeats and I am unable to launch Firefox.

If I look at the macOS console and filter on Mozilla, I notice these two messages from org.mozilla.updater:

1. Server doesn't exist or doesn't provide correct selectors.
2. Failed to connect to update server after several retries.

I have no idea how to proceeed.

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 possiblity 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.