Komunitné fórum Všetky produkty

Здравствуйте! столкнулись с проблемой, используем Mozilla Thunderbird в организации на всех рабочих компьютерах, иногда некоторые из них, не все, теряют связь с почтовым сервером и появляется ошибка что сервер либо не найден, либо невозможно установить соединение, либо неправильные данные для входа(Хотя они заведомо правильные), например в одном кабинете из 3 компьютеров к почтовому серверу может подключиться только 1 из них(Подключены они все к одной сети), появляется эта ситуация спонтанно, нет никаких предпосылок, WEB почтовые клиенты работают исправно в этот период. Можете пожалуйста проконсультировать в чем может быть проблема ? Суть я вроде всю передал, но если появятся какие либо вопросы или потребуются уточнения дайте знать. Заранее спасибо!

The layout of YouTube was different from before. In the past, after the YouTube video was over. The MAIN WINDOW within YouTube page would showed two rows of recommendations. Now there is only one row with great amount of black-out space at top and bottom. Any suggestion to tune it to the usual two rows?

After installing Firefox on a new Windows 11 computer, when I click on the Desktop icon, a Firefox window opens but it doesn't open previous Tabs and the Application menus does not work. I can open new Tabs though and it downloads websites. If I click on the Firefox icon on the Windows Taskbar, Firefox operates normally.

Why doesn't the Desktop icon start Firefox so it works correctly?

Thanks

Wayne Carpenter

I am using Windows 10 Enterprise LTSC, Version 21H2, and Mozilla Thunderbird 140.3.1esr (64-Bit)

Suddenly, the number of entries in my address book has shrunk to 259. The size of the file abook.sqlite was 768 kB. Following the advice on https://support.mozilla.org/en-US/kb/rebuilding-global-database, I did Rebuilding the Global Database That did not have an effect on my address book, the lost email addresses did not reappear. What can I do?

Matthias (now to this forum)

I noticed of late that the Firefox Taskbar icon is no longer recognizable on the Windows 11 Taskbar! It is no longer a circle showing a fox but is a rectangle with a dark square like thing in the middle with very tiny dark spots in lighter areas. How can I get the original icon back that is recognizable as Firefox?

Thanks

Hmm. We’re having trouble finding that site.

We can’t connect to the server at healthy.kaiserpermanente.orghttps.

If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)

What does this mean and how do we fix it?

The CC browser (which I don't want to use) took my bookmark data from Mozilla--Firefox and now it does not have bookmarks. Please restore to Firefox my Mozilla Bookmark data. It won't let me do much because it says another secure program is using it?

Im experiencing browsing issues visiting pages with dynamic content in the latest versions of Firefox. Im seeing similar behavior in Firefox desktop and the Firefox Android app. Both apps are running the latest version.

Here is an example page: https://www.vox.com/21523212/crossword-puzzles-free-daily-printable

When I go to this site, I see the text content, but the list of puzzles that comprises the main page of the page is just blank. Same behavior on desktop and mobile. (See first screenshot)

If I use Chrome (desktop or mobile) or Safari (desktop), the page shows up normally with a list of puzzles. (second screenshot from Chrome desktop).

This is happening across a few sites I visit. Most seem to have some kind of dynamic content loading (like the list of puzzles on this page). This seemed to start this past weekend and I first thought it might be related to the AWS issues, but it's not resolved and it seems specific to FF.

Thanks.

Previously, this function had been working properly. However, starting from this period, many links or bookmarks would redirect to a new page after being clicked. I want to set it so that whenever I click on a link, a new tab will be created to open the page. Looking forward to your reply. Thank you！

I found a folder on my desktop entitled Old Firefox data. It contains a folder entitled 3h0lsis5.default-release. It's almost 900 MB. Do I need this folder? Or can I delete it? Thanks in advance.

Hello Thunderbird Team I am facing a crisis and am praying you can help me. I have been using Thunderbird since 2021. I had setup my account and archives by year containing messages in Folders (Inbox, Sent & Deleted). During a recent laptop migration, I accidentally deleted my profile on my old laptop. I immdeiately recreated it. However now all email stored in my inbox has disappeared. Second, I cannot seem to locate the archives. So I have 2 requests for urgent support: 1. How do I locate the messages in my inbox prior to deleting my profile? 2. How can I recreate the archive with folders? I can see that the profile folder is a massive 22 GB. So the data is there somewhere. Please help me recreate my email profile so I doi not face a business crisis. Thank You Warm regards Milind

My bookmarks disappeared from Firefox yesterday and I cannot restore them. In addition Firefox will not make any new bookmarks at all!? I have tried all the restore options advised: - Turning Firefox off and on. No good - Turning laptop off and on. No good - Windows security is up to date. Still no good - Going to Manage Bookmarks to Restore. None there to restore (possibly because of a CC Cleaner clean?). No good - I was able to find my profile and bookmarks back up. That would not open or load. I was able to find the Jefferson Scher software and use it to process a JSONLZ4 bookmarks file and export/download a HTML version. If I open the downloaded file I can click on that list of bookmarks to link to them (yay). But I cannot copy this list to the Book marks bar!? - I have tried to add some of these links as bookmarks again in Firefox, but no bookmarks appear in the bookmarks toolbar. So I am not sure what is wrong. Please help. Grateful any advice

Hello, Yesterday I opened Firefox and found that websites were loading very slowly, to the point where some websites would time me out. This is only occurring on Firefox, I checked Microsoft Edge, and Google Chrome, they both worked fine. I am running Windows 10, and the latest version of Firefox I have run a clean reinstall and still no dice.

Hello, Yesterday I opened Firefox and found that websites were loading very slowly, to the point where some websites would time me out. This is only occurring on Firefox, I checked Microsoft Edge, and Google Chrome, they both worked fine. I am running Windows 10, and the latest version of Firefox I have run a clean reinstall and still no dice.

Hello, I have Facebook Container installed (Windows 11) on my desktop. However, if I click a link to a FB page, say in an email or on a webpage, Facebook opens onto the current tab and makes it a container tab. Since I can not go back once FB is opened in the container tab, I have to open a new tab and go back to the original (pre FB) webpage. This is the only time this happens.

What settings can I change so that the Facebook Container opens Facebook into a new tab, not on top of an existing open tab?

Many thanks for the millions of us that are computer challenged.

Hello Everyone,

I am seeking assistance to configure Firefox browser so that internet access is blocked when the browser cannot download or access the proxy Auto-configuration (PAC) file. Our organisation enforces all web traffic through proxy servers defined by a PAC file. For compliance and security reasons, users should not have any direct internet access unless the browser is able to successfully retrieve and apply the PAC file.

The desired behaviour is:

1. Firefox attempts to download the PAC file from a defined URL. 2. If the PAC file is unreachable or fails to load (e.g., due to network restrictions or the device being outside the corporate network), Firefox should "fail closed" - meaning it should not allow any direct internet traffic. 3. This is effectively a "fail-block" mode: no fallback to direct connections, and no cached or bypassed proxy settings should allow internet browsing.

This behaviour is critical to prevent devices from accessing the internet without applying corporate proxy rules. I would like to know:

1/ Whether Firefox currently supports a setting or policy that enforces this fail-block condition when the PAC file is unavailable. 2/ If not, whether there are recommended configurations or enterprise policies (e.g., via `policies.json` or Group Policy templates) that could achieve equivalent enforcement.

Thank you for your assistance and guidance.

Hi, I just want to tell the support that new version, 144.0 on 9th October 2025, has some glitch on my HP Chromebook 11 G5 EE. It will auto close when I try to open the Mozilla browser. So, I have to uninstall 144.0 and install 143.0 version which does not have issue auto close on my chromebook. Please look into this. Thanks.