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Starting the Windows 11 laptop again. Then Firefox. Result: No sites are starting. All history lost, many tabs: lost. Great work!!! Last update was already shit (many exception rules have to be set manual again. I love such updates! Useless). And now that. I think I will switch now to chrome. Sorry. Such experience is enough. It is my time - I need a reliable browser, not where I have to spend time to get the things like they have been before

How in the heck do you reach tech support for Thunderbird? I have NEVER in my life seen a company so elusive to contacting them. I appreciate the help in here, but there are times when a forum can't help and you need the actual company to be accessible to get that help.

I am about to that point of uninstalling it and throwing it out the office window.

Hello everyone,

Summary: I am trying to set up my gmail account on my new phone, but after (what appears to be) successfully logging in, the Thunderbird for Android application does not pull me back out of gmail. Instead, I remain logged in to my gmail account as if in a browser. As you can see from my photos, it takes me to the point where I am truly into my gmail inbox, but I am checking it as if in some sort of outdated browser and not as if in Thunderbird. I am stuck; sitting in my gmail account, logged in; able to view email, check and change account settings, even get onto other parts of my google account. Unfortunately, I cannot find a way to get back out of my gmail account that returns me to the Thunderbird for Android accounts setup process with a successfully login to gmail. I end up having to hit exit or to close the app, which causes the account setup to fail.

Expected Behavior: Open the Thunderbird for Android App. Setup new account (gmail which produces an automatically detected OAuth 2.0 method). Give login credentials, gain access to gmail, and then be auto-redirected back to accounts setup process in Thunderbird for Android with full IMAP + SMTP access to my gmail.

Problematic Behavior: Same as above, except I am stuck as if in browser mode. When I exit and thus am returned back to the accounts setup page, I receive a failed notice (see photo). Immediately afterward, I tried to setup an account for the same gmail address on an old android phone and successfully logged in as expected. How do I get back to the main accounts dialog with a success?

Notes: The new phone is a linux-based phone (Furilabs FLX1s) on which I have found Android apps to function without hiccup. It seems like In fact, the Thunderbird for Android app itself seems to function fine. It doesn't crash. It allows me to navigate through the app menus flawlessly.

Thanks for the help!

I'm really stumped and confused why this would be, but, I'm unable to sign in to my account on one of my devices, though I can access it from other devices.

I have a work computer and a personal computer. I want to have a profile on my personal computer signed into a an account I share on my work computer so I can easily access tabs and history across my these to devices that's separate from my main firefox account attached to my personal email. Got the profile signed in on my personal computer, went to sign in on my work computer and got a message "unexpected error." I attempted to disable the extensions and clear cache at the advice of one thread I saw from years ago but I really have had a heard time finding anyone with this issue at all.

Anyway, any help would be appreciated! Thanks!

On 2026-04-15 from about 10:00 CDT on, I have not been able to update Nightly nor Firefox Developer Edition (Aurora). Both of them notify me that there is an update available, and when I click on Help -> About Firefox I get the usual panel that gives me the update ID to click on. Clicking on it tells me it's Downloading Update -- 0 bytes, and it never flashes the expected size of the update, never shows progress, and never completes. It seems to be acting as if the update server is out of commission.

I changed my email password on the providers web site, my phone, tablet both asked for the new password but Thunderbird has not, why can I still send and receive email ?

And don't see a place to change the server password either, I thought it would just ask.

Hello,

Everything working just fine last night. Wake up and Thunderbird will not retrieve emails.

Remembered this old message I got so I went through and deleted my second email address, didn't help.

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

Checked all settings compared to Yahoo, still won't download messages. I can even send a message with my current settings no problem, and it does login, just won't retrieve emails. Gives me a connection timeout.

Anyone have any ideas?

My browser updated to 149.0.2 on Windows 11 early April 2026. I first noticed the browser asking me to select a profile when trying to open hyperlinks from emails, but since I had not closed the browser since the update, I still had all of my information. When I went to restart, I was forced to make a new profile as no other ones were recognized. This also happened during an update at the end of 2025 and I was able to fix it with advise from support articles., Unfortunately, none of those fixes seem to be applicable anymore. Does anyone have a current fix? I have lost so much saved info!

Downloading a file closes the source website. Once clicking on the download icon, the subject file appears and the source website closes. The file can be downloaded, but cannot return to the source website unless logging into the website again. The back arrow in upper left corner is not highlighted and cannot click on it. This is relatively new because it did not occur previously. Use to click on the download icon, the file would appear, download the file, hit back arrow and return to the website. Please help. Very time consuming and frustrating to have to keep logging into a website to get all needed downloads.

How do we (users) modify Firefox functionality to "open image in new tab" using a keyboard shortcut? A configurable (about:) parameter would be very beneficial.

If this is already solved, please publish documentation on how to solve this without the use of questionable add-on's (which introduce security risks and privacy issues).

Thank you...

When I type the word "attachment" in version 149.0.2 I no longer get the warning bar across the bottom of the screen. I do have the "check for missing attachments" box checked in Settings.

Imported desktop settings to TB Android on my phone. Used your instructions and seemed to go well (done it before). Android install of both Gmail accounts I imported are 'stuck' showing ONLY the outboxes. Can't get anywhere else. What do I need to do to correct the install on my phone. Desktop install was done manually and seems to work.

I have relied heavily on the "Open message in conversation" function, because it gave me a tree of messages across all folders (Inbox, Sent, etc.) that was based on the person I was corresponding with.

Now, the function is giving me a tree based on the Subject of the message. This behavior makes it useless to me. I've looked, and I can't find any configuration setting that would control this option.

How can I once again get a message tree based on the correspondent's name, then sorted next by date?

Thanks!

Over the last week or so, selecting a link embedded within an incoming email on Thunderbird does not now ensure that the desired webpage will be opened in Safari and other browsers. Shutting down Thunderbird, intermittently enables the proper functional activity of opening the desired webpage. I've discussed this with Apple (iMac; Sequoia 15.7.5) and was unable to identify this as an Apple problem.