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Hi there, I was wondering if we could get a setting to change the aesthetics of the tabs in our browser. Currently, we have a 'button'-type highlight for our current tab, but I was hoping we could manage our themes or preferences to actually have the tab visually 'connect' to the browser page itself.

It would help a lot with visibility, and I would greatly appreciate either the suggestion as an option or giving theme creators the option to tinker with the shape of tabs as a whole.

After new installation I want to use my profile of the former installation. In principle I followed the procedure of the article "An einem anderen Ort wiederherstellen". After that when starting thunderbird it always asks me to create a new account.

Does anyone know what is missing?

Доброго времени суток! Уважаемые друзья, хочу сообщить, что у нас мало времени! В ближайшие месяцы появится опасность взлома квантовыми компьютерами корневых сертификатов сервер-клиент, ключи обмена и другие ранее считавшиеся не возможными взломами обычными средствами и вычислительными мощностями. Пожалуйста, добавьте проверки на квантово-устойчивую гибридную криптографию при сканировании браузера и сервера.

Please provide contact information (phone number).. I need to talk to a real, live human being. Your articles and references are not understandable to me. Please help me restore Thunderbird e-mail function and service. Thanks you.

(PII redacted by moderator)

Dear Support Team,

Greetings,

I would like to express my sincere gratitude for your excellent service and the recent update introducing the integrated VPN feature.

I am writing on behalf of myself and many users residing in Iran. As you are likely aware, our internet environment is severely restricted, with all major social media platforms and communication services being heavily filtered. Accessing the open internet is virtually impossible without a reliable VPN.

In light of these conditions, I kindly request that you consider increasing the current 50 GB monthly limit, if feasible. Even a temporary increase for users in Iran would be immensely appreciated and would significantly assist us in staying connected.

Thank you very much for your understanding and support.

Hope for a free Iran.

Warm regards

I use emojis in email, but recipients report that the text of the email arrives covered with emojis. I thought it was a problem with the receiver until a second person just reported the same issue with an email I sent them. Both are gmail accounts . . .

Ich kann seit einigen Tagen an Mails keine Anhänge mehr zum Versand anhängen: Vermutung: Es hängt mit dem letzten Update zusammen.

Aktuelle Thunderbird-Version, Upsate 3. Oktober 2026

Almost every time I launch Firefox, I'm interrupted by another update. Instead of getting straight to work, I have to deal with update downloads, installation prompts, or restart requests.

There is no reasonable way to disable this behavior. Even selecting "Check for updates, but let you choose to install them" doesn't help, because Firefox still interrupts me with update notifications.

Why can't users simply check for and install updates manually, without constant interruptions?

For a browser with such a small market share, Firefox is remarkably aggressive about imposing this intrusive UX on its users.

Please provide an option to completely disable automatic update checks and notifications. Let users decide when to update their own software.

Hi! I reached out on Friday and was sent a code that expired in 5 minutes, missed the deadline and had to leave the library. I updated Firefox to 155 and can't find my bookmarks. Also found that a Microsoft update included Goggle Chrome that I uninstalled. Please advise on getting my bookmarks back thank you. I only have 30 minutes left on line. Thank you for all the work you volunteers are doing, greatly appreciated! Mark

v157.0

The new update changed the Dark Mode Theme to include a color gradient on the tab row. This is quite distracting an I would like to know how to revert back to the plain, non color gradient Dark Mode Theme prior to the update.

The full error message is: "The procedure entry point ?WindowsBCryptinitialization@mozilla@@YA_NXZ could not be located in the dynamic link library C:\Program Files\Mozilla Firefox\xul.dll."

After accepting that, I get another message that says: "Couldn't load XPCOM." Then, it just quits, with no Crash Reporter dialog.

I downloaded a fresh installer, but it takes a couple minutes to even launch, and then just sits there for a long time on the initial screen doing nothing before saying the installation failed. I've restarted my computer twice hoping it was a one-off issue, but there's no change.

According to the file information, xul.dll was last changed September 3rd, so it may not be the source of the issue. Perhaps whatever name mangling is responsible for the above entry point changed and now they don't match?

I have automatic updates set to "download but don't install", so it downloaded it a few days ago and I just restarted it this evening and the issue occurred. I could understand that maybe something got corrupted during the update, but I have no idea how the installer could also be failing.