Diễn đàn hỗ trợ Firefox

Hi,

I am trying to connect my device to a web page crypto wallet and get this message/prompt: Windows security Making sure it's you Please sign in to https://wallet.thetatoken.org This request comes from Firefox, published by Mozilla Corporation

Insert your security key into the USB port, I bought a security key but do not know what they are asking for?

Can anyone help......

mike

I have used OneDrive with containers for several years for my clients. Recently I can't open OneDrive in a container, but I can open Outlook. Very frustrating. Any suggestions?

Hi, my Firefox on Win10 doesn't work, I've been forced to go back to Chrome. After a crash in Win10, Firefox doesn't work anymore: it opens, be it launched by me or by other programs, but it just sits there, blank, doing nothing. It is impossible to interact with menus and everything. Task Manager shows two open instances of the browser, using RAM, but the browser doesn't do anything. It doesn't "crash" and it doesn't freeze, it just stays like that. If I quit it and try opening it again the PC tells me it's open already, and Task Manager shows a couple instances staying there after quitting it, as if it stayed stuck. I tried resetting it from the Apps settings of Windows, but nothing happened, I tried uninstalling it and then installing it again, but nothing happened. Restarting the PC a couple of times changed nothing. In the end, I had to go back to Chrome and even put it as default browser because all programs were calling up Firefox which stayed unresponsive. Anybody knows what I should do in a case like this?

hey folks,

since today firefox wont load any websites out of troubleshoot mode. not even settings/ about:config. if i open a page in a new tab it just stays blank and nothing is happening.

in troubleshoot mode i turned off hardware acceleration - nothing changed after restart. i updated the runtime file "Visual Studio 2015, 2017, 2019, and 2022", which is suggested in different help-posts, i deactivated all addons, i created a new profile and also tried an imported one from eralier today - so far nothing has worked.

i also reinstalled firefox with version 99/ version 101 two times, after i cleared %APPDATA%-data.

im also just using windows defender as antivir.

please elp, i'm out of ideas.

When I add a new bookmarks I can see them in "Recent labels", but not in "Other bookmarks" (the last one in that folder is of the 20th of February 2022), so I can see only my last 10 saved bookmarks from the 02/20/2022 since now. The bookmarks are surely saved, because if I try to delete one fromt the "Recent labels" another one less recent appears, but only in the "Recent labels" folder and not in the "Other bookmarks". So, what I have to do to see my saved bookmarks not present in the "Other bookmarks" folder, but not so recent to be visible in the "Recent labels"? Thank you!

Hello, Few days ago I noticed that Firefox started complaining about self-signed certificate issues, although I added my CA certificate to authorities months ago. It worked without any problem, but now I'm unable to open any of my internal sites anymore.

I tried to open a random site in Chrome, but the same issue. So you immediately will say the is in the certificate, but wait. I have few VMs running on Virtualbox, so I decided to test in there. Guess what, no issues at all. I tried in Fedora 25 (the Firefox version is below 100), then tried Windows 100. Both worked. Then I decided to update FF to the latest version, guess what - it broke again =]]

So something has changed, but I really don't have a clue what causes the issue. I attach the screenshot of detailed CA view from Firefox.

i own a macbook and have recently switched from chrome to firefox- in my mac settings, it hasnt given firefox the permissions to use my microphone or camera. it doesnt show up the usual list to be able to allow the permissions. i've enabled microphone and camera permissions for the websites i want through firefox, but i cant even unmute myself. i think i need firefox to give me a popup and ask for microphone permissions, but it hasnt done that- and even if it did, i think it would show up in the list for allowing permissions through my mac settings (it shows applications that have requested for microphone access).

I started up my computer today; I tried to open up a youtube video in picture-in-picture add-on, but it wasn't there. I restarted my computer, completely closed firefox, looked into settings for the picture-in-picture settings that are supposed to be under 'Browsing' in General but I can't find the settings for it there either. I have tried using other video sites, but nothing works.

Been using Firefox for long time on a Win10 machine. Motherboard failed. Saved the C drive. Question is how to move bookmarks (profile files ?) from the old C drive to the new Win11 computer? I tried moving the profiles over from the old C drive to the new computer but Firefox would not recognize them and shutdown. Restored the Win11 files and Firefox is again happy.

Currently using 101.0 (64 bit) on Windows 10.

It's quite annoying to try to type a capital F using Shift F but end up with developer mode.

I tried in privacy mode and this still occcurs, so I think it's not something my add-ons do.

Is there any way to disable this feature?

When I pin a tab, then quit Firefox, the pin is lost forever.

Most other tickets I've seen are about restoring them, but I'm looking for some setting to change so that I can pin tabs.

My history is set to: Remember My setting to delete all cookies and site data on close is unchecked

Any ideas?

Thanks a million!

When opening pdf's attached to emails they used to automatically be opened by my pdf viewer software. Then they started opening in Firefox on another tab, which was fine. Now I first get an error message from firefox where I need to click on "open site in new window" it isn't a site but a pdf?? How do I get it to go back to opening with Adobe instead?

Thanks, Jeff

Hello. I just closed by accident my main window so I restored it, but it apparently lost all the container data and restored all non-pinned tabs to the default container.

Is it normal, is it a bug or is it a yet-to-be feature?

It feels like a bug because pinned tabs (which were not present/open in the secondary window that stayed open when I accidentally closed the main one) where duly opened in their respective containers.

I keep trying to add Honey extension using Firefox. It shows that I have downloaded the extension, but it is not working. I know I am doing something wrong, but I don't know what it is. Thank you!

When I click on the Firefox icon to start browsing, the Zoom meeting program opens automatically! How do I prevent that from happening?

Thank you for your help.

I know there's [[an article|https://support.mozilla.org/en-US/kb/sync-custom-preferences#w_sync-custom-preferences]] on how to sync custom preferences. I wanted to sync my toolbar customizations and some other preferences like disabling disk caching. And I don't even have other firefox instances, instead I just want to sync only on one device, so that I can continue the same setup when I signin later on the same device.

I've tried to add services.sync.prefs.sync.browser.uiCustomization.state, "services.sync.prefs.sync.browser.cache.disk.enable" and set it to true. But it doesn't work. What am I missing? No one seems to address this. May I am missing something.

How does one specify which program opens a .zip file after it is downloaded?

Presently, the download functions properly, but when I click on the file, VLC media player opens; have no idea why; how can I specify 7-zip File Manager instead?

Thank you. Appreciate.

I am trying to set youtube to always open in Youtube container , when i right click on the logo or name of the container it doesn't do anything , at previous version was fine , is there any issue with current version ? is there another way to enable youtube to open always in it's own container ?

I routinely record short screencasts with Kazam, and I can't watch my own videos after posting them on sites like GitHub because Firefox says "Video can't be played because the file is corrupt". Or for example when I upload them to sites like ezgif to convert them to a GIF, which works just fine because, well, the file is not corrupt. Other browsers like Chromium play them just fine.

Apparently the "OpenH264 Video Codec provided by Cisco Systems, Inc" is properly enabled in my system. This has been happening to me for months or years, but only today I decided to open a thread here.

There are two things here:

1. Firefox can't play the file. I'm sure there's some sort of misconfiguration on my side, or bad defaults, or a missing plugin, or similar. 2. Firefox shows a misleading message. The file is not corrupt! The root cause is something else.

Any advice on how to fix the first one?

I'm using 64-bit Linux Mint 20.3 LTS, and the latest version of Firefox from the repositories (101). Suddenly, for no reason I know, my default profile has started crashing immediately on trying to run Firefox. A small window comes up with the error message

XML Parsing Error: not well-formed Location: chrome://browser/content/browser.xhtml

     <button when-cofnection}"secure-cert-user-overridden"="" <="" pre="">
and then a line of ------^  where the ^ indicates between the t and the i of cofnection
Yes, I emphasise that I HAVE copied the error message carefully, including the mismatched bracket pair and the cofnection rather than (I assume) connection
I've managed to get a working version of Firefox by creating a new profile and using that (as in for posting this request for help), and I do have a recent backup of my bookmarks, but it will be a royal PITA if all my logins and passwords have disappeared. I don't want to go any further than this without some guidance, as all the messages I've found detailing how to fix this seem to make the assumption that I'm running Windows. 
Can anybody help, please?
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