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Since a recent version of Firefox was installed the picture in picture control does not work. I have unchecked the option but It still shows in YouTube etc.

I know this can be disabled in about:config but I prefer not going there. I wonder if this will be corrected sometime, otherwise the setting option is pointless.

Another item: I have unchecked the search suggestions in settings but it makes no difference.

Input welcome.

Appox 2 months ago Firefox updated. At that time I always opened Firefox to Fox news. On the left of my screen I had a long column of bookmarks that I used frequently (bank, Gmail etc). It always came up when I opened the browser. It no longer does. I now have to-Alt B-to bring it up. It works fine except I have bring it up everytime I want to use a bookmark and most times when I get out of the site, it also closes the browser. Some updates are a real pain and this one is for me. Any help would be appreciated.

Good morning, We are a company with around 10 employees and we use Thunderbird as our email client across multiple workstations. Some of our IMAP-configured mailboxes are used on several PCs and have grown quite large, causing local storage space issues.

I recently discovered that Thunderbird offers settings to manage synchronization more efficiently — for example, by limiting the download of messages to the last X days (e.g., 30 days), or by excluding certain folders from automatic synchronization. I’m referring specifically to the options under: Account Settings > Synchronization & Storage > Advanced…, and also the Disk Space section.

I tried changing these settings on an already configured account, but the changes don’t seem to take effect — messages are still being fully synchronized. I would like to know:

   If I’m doing something wrong in the process;

   If these changes only apply when configuring a new account;

   What is the recommended way to manage large IMAP mailboxes in a business environment to reduce local storage impact and improve performance.

Unfortunately, our email provider doesn’t offer alternative solutions unless we completely change the IMAP configuration, which we would prefer to avoid.

Thank you in advance for your support — I look forward to your response.

Best regards,

I can not use YouTube, all videos infantly buffer, I have deleted cookies and all history and it still fails, If I open a private window it works!

What is wrong?

I know the system backs up bookmarks every day or so. I want to migrate all to a new PC. With a new Laptop it seems to have done so automatically, maybe through synchronize feature, I am not sure how I did that . I normally export bookmarks to a external flash drive as HTML. Just did also to a .json file type cannot find how to do that. Which format and method will be best? Have all of the old PC backed up through Acronis full back up. Will that have the full Firefox program with the bookmarks?

I use the quick filter bar all the time, but it keeps disappearing from view, then I have to go to View>Toolbars> Quick Filter Bar to select it again. This happens often. Is there a way of keep this tool visible?

thanks

I’m using Thunderbird 115.6.0 (Build ID 20231215200246) on Windows 7 with Gmail IMAP. Since 12th September 2025, emails from two specific senders (legal contacts) are not arriving in Gmail or Thunderbird, whilst other emails arrive normally. These contacts were emailing successfully since January 2025, with long threads. · Emails sent from Thunderbird to these senders arrive (confirmed 16th September), but their replies don’t reach Gmail or Thunderbird. · Forwarded emails from these senders arrive in Gmail when sent from another Gmail account but don’t sync to Thunderbird. · Gmail-to-Thunderbird and Thunderbird-to-Gmail test emails work fine. · I’ve checked Gmail (All Mail, Trash) and the emails are not there. If anyone can help me it would be much appreciated.

I have two Microsoft accounts on the same computer: one corrupt and one good. Thunderbird format/layout that I prefer is in the corrupt account. I downloaded Thunderbird to the good account but the format/layout is totally different. Consequently I would like to copy my preferred format/layout from the corrupt account to the good one. How do I go about it?

уже второй раз браузер закрывается и при новом открытии все закреплённые вкладки исчезают, из-за этого уже думаю поменять браузер, потому что восстановить даже из бекапа не получается

Hello,

we are observing big issues with mozilla firefox.

Few weeks ago it was impossible to use amazon with it.

Amazon support recommended us to not use the anti virus anymore, which was very strange. but it did not help.

After I add the antivirus addon to firefox it started to work. Unfortunatelly just for few weeks.

Actually we receive the following error and cannot browse or do anything Fehlercode: PR_CONNECT_RESET_ERROR

We have tried follwoing without success: - clearing cache - using problem investigation of firefox below button "help" - deinstalling and installing - installing the beta version

already after installation of firefox where normally terms and conditions to confirms shall appear we get the failure Fehlercode: PR_CONNECT_RESET_ERROR nd the content cannot be downloaded.

Hence Amazon does not work below google neighter and firefox is the only way o use amazon, we will appreciate your help.

Looking forward for your help

ags

Thunderbird stopped receiving emails the day before. Now when I start Thunderbird I am being redirected to pinterest to sign in with username and password...not doing it. Hoping someone can help resolve this issue before I reformat my computer. Have not had this issue in the past and have been using Thunderbird for many many years, happened all of a sudden.

TLDR: an upstream fix in hunspell/de_DE_frami.aff from libreoffice did not make it into mozilla in three years. Why?

The original problem: When typing in German on a non-German keyboard, one types "oe" instead of "ö" and "Ae" instead of "Ä" or "ss" instead of "ß". The German spellchecker with flag "fuer" as an error and correctly suggest "für" as a replacement.

The way the German spellcheckers are defined, they will identify a single use of such a replacement but not two adjacent ones. This had been extremely irritating to me when I try to end my emails with greetings "Grüße".

I type "Gruesse" and the spellchecker does not find "Grüße" as a correction.

The fix: Back in 2022 I finally decided to try and fix this bug myself. I discovered that in order to fix it, we needed to tweak a file called hunspell/de_DE.aff or hunspell/de_DE_frami.aff. I didn't know where to submit this correction, but ultimately found the source for these files to be in the libreoffice project. They accepted my merge request in 3 years ago in September 2022. https://github.com/LibreOffice/dictionaries/pull/40 https://gerrit.libreoffice.org/c/dictionaries/+/136067

Today's problem: I was assuming that over time that change would propagate to all downstream projects using these dictionaries, but this is not the case.

Today, in September 2025, using ubuntu-snap installed Thunderbird version 140.2.0esr-3, and Firefox version 142.0.1-1 I can see that neither of them include the fixed dictionary - neither in de_DE nor in de_DE_frami.

So here is my question: Where does thunderbird and where does firefox get their language definitions from? Where do I need to submit this fix to the hunspell dictionaries in order for it to finally make it to release?

I deleted all the shortcuts from Firefox desktop browser's homepage and now I cannot add them back.

There are no blank shortcut icons on the page anymore. No setting to enable them. Shortcuts are enabled. Page is mostly blank, only has Firefox icon.

I tried to close and open Firefox as well as disabling and enabling the shortcut setting. Adding more rows did not do anything.

Before this issue occurred, I had one shortcut on the page that was linking to localhost. I opened the edit window to the shortcut and pasted the same address and saved changes. After that I removed the shortcut. All of the blank tiles immediately got removed from page and I had no way of adding more shortcuts.

Hi!, My TB 128@linux doesn't go to inbox or last viewed folder after startup, but display some useless page like "add new account" - "Skonfiguruj następne konto" in my language. I have couple accounts, they work I don't need new one. My profile is on NFS, I tried to rename session.json but new one doesn't appears. I tried add some mail.accountmanager.defaultaccount i prefs.js but with no luck. strace thunderbird show no tries to access any session. Also I changed checkbox in general setting at "use this page" but it didn't helped.

Can you help me or give at least info how to enable proper logging in this version?

Hello,

My company has 2 domains. I have a user (jim@domain1.com) who needs to access 3 shared office365 mailboxes (jim@domain2.com, info@domain2.com, and orders@domain2.com). All 3 accounts already exist from a time when we had our email hosted by a dedicated hosting company. That hosting plan expired and I added domain2 to our office365 account.

How can I edit the info@domain2.com, jim@domain2.com, and orders@domain2.com accounts to point to the new office 365 shared mailboxes.

Thank you, Steve

I don’t remember from when, but after some point of an update of Firefox for iOS, whenever I type something in Korean into address bar for quick search, it automatically changes my inputs to English and extra character appends at the front. This will cause great inconvenience for Korean users. I hope Mozilla team fix this problem soon.