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I would like to be able to click the little fire icon on an email in my "list of emails" window to Mark as Spam, then have Thunderbird automatically move it to my Bulk folder after that.

I looked to see if I could set up a filter to do that, but don't see "Marked as Spam" as one of the selection criteria.

Is there a setting to accomplish what I'm looking for?

I have a vivo pad 3, and when I'm using it in landscape mode, the firefox app would only occupy part of the screen, leaving the two sides empty. It used to work fine and I don't know what made it to behave like this since I didn't touch the settings, and no other app is like this.

Can't install yandex.ru mailbox to Firefox for Android. Using generated stecial application password did not get s result anyway

1週間ほど前にFirefoxがアップデートされたのか、インターフェースの見た目が変わりました。 それ以降、検索バーに文字を入力すると、入力中のテキストの背景に濃いグレーの色が表示されるようになり、文字（黒）が非常に見づらくなって困っています。

この背景色の変更は、Firefoxの設定で元に戻したり、調整したりすることは可能でしょうか？ あるいは、ユーザースタイルシートなどを使う必要があるのでしょうか。

使用環境： ・Firefox バージョン：139.2 ・OS：iOS 18.5

検索するたびにすごくストレスなので、アドバイスいただけますと幸いです。ただ複雑な設定などは自分には対応できそうにないので、解決できなそうならブラウザを変更するしかないと思っています。 どうぞよろしくお願いいたします。

The comment sections for foxnews.com and other sites disappeared using Firefox but not when I switched to Chrome. This just happened 6-18-25. Before this date, it worked on Firefox.

Every time the browser autofills a password it asks me for my Windows password. I don't want this behavior, as this makes password autofill completely pointless. How do I disable this "feature"?

i recently disabled 2fa and installed a new authentication app: Ente Auth. i keep getting invalid code each time i enter the generated code. i tried both options, scanned the QR code and entered the secret key manually. i used authy with success as my auth. app with firefox but can't use authy anymore. keep having issues setting up 2fa with other auth apps. thanks for any help you can offer. peace, Adrian

My Win10 & Win11 pc's updated to this version and they all have the same problem: The bookmarks have disappeared. Including my pinned bookmarks on FF's opening page.

I also just noticed that there are no "toolbar items".

Hi! I am trying to rid myself of Microsoft Outlook and am transitioning to Thunderbird. I will speak in Outlook terms... I want to do the same with Thunderbird. My Outlook activity is saved on the server and on my hard drive as .pst files. I periodically do a backup up by simply copying them to another drive. I would like to do the same in Thunderbird but don't know what the file name, extention or folder name/locaton is.

What is the file name and extention for the Thunderbird version of these files and what folder on my hard drive can I find them? A search on C:/ for .mbox returns nothing. Your insights will be welcomed!

Jim

I noticed on both Android 15 and 16 that the FF app shows 'Ask Bing' (see attachment) when you invoke the copy/select all/search etc. popup. .

I have not found a way to remove this. Any ideas?

The AI chatbot is back in my sidebar. I did not opt in to this. I would prefer not to roll back to whichever version of Firefox is before the AI it's-a-feature-not-a-bug got wedged in; what other options do I have for permanently disabling AI?

Going to sidebar settings to hide the AI chatbot does not suffice. Evidence: I did that already, it has been undone, and I cannot now find the toggle in question.

Personally I vote for yanking it out of the main browser altogether, so people have to actively choose to install the AI chatbot add-on. But my question is about actions I can take myself.

I'm using Thunderbird 102.15.1 on kubuntu. With previous versions I could set up an automatic filter to move emails to defined folders depending on various criteria. How do I do this with this version? Thanks Hugh Grant

Updated to iOS 139.1 (56119) on my iPhone running 18.5. After updating and trying to search on Duck Duck Go, after getting to a results page, if I try open the search box to alter my search the keyboard on my phone opens for a fraction of a second then closes right away.