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［設定］→［外観］から［テーブルビュー］、［非スレッド］、［降順］に変更して、スレッド表示と並べ替えの設定の適用先を［既存のすべてのフォルダー］をクリックすると、起動している間はこれらの状態になっているが、Thunderbirdを終了して再起動すると設定が下に戻ってしまいます。 これは以前からではなく２ヶ月前頃から生じています。 この問題を解決する方法を教えて下さい。

One of the recent updates mentioned something about changing the colors for read vs unread emails. Now the contrast between the two states is barely perceptible, whereas before it was fairly clear (at least when using the dark theme; I have checked both themes on the current version and they both suffer). Is there a better forum to provide this feedback?

Thunderbird on my Android phone updates to 12.1 today, and now the unified inbox no longer has folders under it. In the attaches screenshot, there used to be folders below "Inbox". I could control which folders from any account showed up there. Now they're all gone. How do I bring them back?

Hello, Last week I did not have the Sent Mail folder, came here fixed it. Now the emails I send do not go into the Sent folder. I tried to find help and could not find anything than to right click on the Sent Mail folder, Properties, then Repair folder. It did not fix the problem.

Is there anything I can do to fix that, I used to have all the emails I have sent in there, no more.

Thank you for your time and efforts.

You deserve to got through this so you will UNDERSTAND!!! YOU KEEP changing the settings arouhd, just "pllaying" like it's not very serious for other people! YOu have decimated this and then just when we think you are on our side again, because to us it is not a game or a side shoe for entertainment and playing arouhd, and we think you are going to help and improve and then you redo the settings again throwing us off completelly! I hope it happens to you so you will matrue and know what is REALLY going on!

I have the latest Firefox installed on Linux Mint. But in Firefox privacy settings there is no longer a way to choose browsers. It just says "Firefox is currently your default browser". But every time I do a search, it automatically search with Google. That never never happened until I installed latest Firefox. If Firefox is forcing me to use Google, that why do I need Firefox?? Please explain?

Thanks much for your time

I have no idea why, but TB is wonking out lately with strange errors?

The folder '[Gmail]/Sent Mail on me@mydomain.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.

I have a ton of space and have not changed anything on the PC?

Any ideas?

I have been trying for WEEKS NOW to sign into my bank! The bank can use a TEMPORARY password to access my account but once that's over, when I try to log into my bank I STILL CANNOT LOG IN!!!!!!!!!! WTF has happend to Firefox after that last "update" what ever it was they changed, made it IMPOSSIBLE for me to log into my BANK. The problem is NOT the bank it's FIREFOX & FIREFOX NEEDS TO FIX THIS CONNECTIVITY PROBLEM SOON IF NOT SOONER!

How can I get the tabs back that I had open before a Firefox Update? They're not coming up using Restore History. I had a lot of things open that I want to be able to go back to.

Thanks, Bill

My bookmarks do not sync between my Android( Samsung 22 Ultra) and my Desktop( Windows). I show this issue as when I would delete and update bookmarks on my mobile. They did not update on my computer. I have tried signing out on my computer, which wiped out the bookmarks and other saved attributes. Then signing back in. This did not work. My bookmarks menu is bare. Even though in my account I have both my mobile and computer accounts connected. What can I do to fix this?

Some background, the bookmarks and other saved attributes where from chrome, I transferred them over.

On a new tab in Firefox Focus for iOS 26, the floating keypad first appears, and once Dragged to bottom to make the full keypad, it glitches, erases what I wrote, and brings up floating keypad again. I know this is a beta and has bugs, this is just FYSA for iOS 26

Step #4 of the instructions say Select Contacts: In the bottom - left corner, click gear icon and Select All. Step #5 Export as vCard: Click the gear icon again and select vCard to download a .vcf file of your contacts. The "Select All" transcript in #4, doesn't occur and I'm unable to download contacts file. I've also tried downloading from my iPhone with negative results. What might I be doing wrong. Thanks for any help.

Att made me change my account password. Now Thunderbird cannot access messages. I have entered the new password in out going and incoming but there seems to be more to this than that because nothing happens. Where do I have to put in new passwords? Thanks so much. Marjorie

Recently I am unable to pull up saved passwords when logging on to sites I use regularly. I can go to Settings, Privacy & Security & check the box "Ask to Save Passwords". The saved passwords then stay on even if I close & reopen Firefox. All is then well until the next time I restart the PC. Then it defaults back to an unchecked box. How can I set the PC so that the "Ask to Save" button stays on? Upgraded to Windows 11 about 1 month back. Thanks.

I am installing Firefox (Latest from website) on a windows11 laptop. I had firefox many years ago and uninstalled it. I am reinstalling and I get a pop up that states: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window:"

I have uninstalled and went through my laptop to remove all references from firefox. Task manager shows no sign of mozilla or firefox running processes.

A check of the crash log is empty.