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I was reading email, archiving some and deleting others. After deleting a message, it started deleting all messages in the folder as if I were pressing "Supr" continuously. To stop that, I clicked on a folder. It showed the display "Are you sure you want to delete folder xxxx?" After clicking no, I went back to where I was reading and it continued deleting. So I closed Thunderbird. Opened a terminal window to test if keyboard was stuck but but there was no sign of a key being struck.

After reopening Thunderbird, there is no trace of the deleted messages. Those I manually deleted are in the Trash folder but those deleted without control are not. This makes me think it is not a problem with my keyboard or OS but something related with a bug at Thunderbird. Does this seem right or am I missing something?

I am using Thunderbird 91.9.1 (64-bit) on a clean new Ubuntu 22.04 install. All updates are applied up to date. I have not found any bug related to this and I do not know what to do. I am very wary about continuing to use Thunderbird.

Until several weeks ago, new windows created through Javascript with window.open() worked. We could pass the new size, and other features, e.g. menubar, toolbar, etc. and they would show up. As of v.76.0 this is no longer true. The parameters are ignored. If we use no parameters, the menubar, etc. do show, but we can't control any new window features. We have not changed our programs at all, and window.open() parameters still work correctly in Chrome, Brave, Edge, etc. How do we get Firefox to recognize the window.open() parameters (again)?

I have been checking all the help threads and I never did see an answer that works. I set my homepage to be msn.com and now it won't come up at all. I've cleared cached, history and everything else. I've done malware searches via various programs, including Malwarebytes and nothing comes up. I tried reloading the page as my home page using the suggestion of dragging it to the home icon as well as setting it in 'settings'. I even reloaded the firefox program. I looked at about:config as suggested. I couldn't figure out where to right-click to reset it as suggested, however I did do screen shot of the current settings and nothing stands out to me. I don't seem to be having this home page problem and, as mentioned, I haven't seen an effective fix for the problem except to use Chrome as an alternative.

Do you have a fix that I missed?

Thunderbird keeps asking for address book password everytime I open thunderbird. I have selected to "save password in password manager" but it won't save it. It works after I enter it, properly syncs my address book, but it's frustrating when to have to copy from my lastpass every time I open it.

I have looked in preferences in saved passwords and it is not there. My imap, smtp and caldav logins are there, but no carddav password. Nothing else asks for password, just carddav.

Using: - Windows 10 Pro 21H1 - Thunderbird 91.11.0 x64 - CardDAV server is hosted by zoho (https://contacts.zoho.com)

Firefox has become very slow for some two weeks om my desktop with Linux Xubuntu 18.04. Some sites can be approached without problems except for the speed, other sites are opened after some time, but freeze so that scrolling and clicking on links won't work. I tried to find an answer in the Settings......

I am not able to play any video or see any GIF properly. They all appear to be very much zoomed in and cropped. I was able to view all videos perfectly so far. This problem has come in recent updates only.

Using Thunderbird I upgraded not too long ago (in 2 steps) from Eudora to now version 91.11.0. I no longer see my address books (but see files abook.mab and history.mab (but not the .BAK versions as suggested on the internet)). Both files seem to contain data (when viewed in Notepad). How to get Thunderbird to recognize/use my address books?

Firefox version: 102.0 (64-bit) System: Windows 10 21H2

I recently downloaded a file that may have had some sort of virus or malware. The file came up negative in Windows Defender and Malwarebytes but I deleted it anyways; however, I still get a download popup every time I open Firefox telling me that "This file contains a virus or malware." I've cleared the download library and browser history (cookies, cache, etc.) but I still get the popup from the Firefox.

Is there any known fix for this? Thanks!

Good morning,

I'm reaching out to see if I can get some assistance with Firefox on of our network. I'm System Admin at Goodfellow AFB. I've tried searching this issues on the web and found similar issues but solutions that were recommend online have not worked for us. Yes I have uninstalled Firefox completely and installed it from scratch. I know it has something to do with autoconfig file but not sure what exactly I'm looking for. Thanks.

The rendering issue is not seen with Chromium (Linux) or Safari (Mac). I have no alternative for Solaris :-(

I have read the tips etc, reset everything, but there is no difference.

This has been happening for a a couple of years, getting progressively worse, It has got so bad, I have stopped using FF on all but Solaris now. (and I have been using it for a long long time).

I need someone to direct me to what information/data is needed to be collected so someone can comment. Do you have any favourite page load test web sites that I can send out put to you from?

Hello, Do not be tired

while i clicked on the normal Web page, Cursor is activate, And blink. it walks a lot on the nerves.

please solved this problem,

Thank You!

My computer crashed while Thinderbird was open and now all subfolder, all other accounts and everything else works well except my main Inbox part. I get gray picture with no messages, the wait cycle is constantly rolling and nothing happenes. When I opened preferences for the Inbox, there was no path. I tried to copy it from Inbox subfolder but can't write in that window. Tthanks in advance for your help Best, Alex

About a year ago, I was experiencing problems with the current-at-the-time version of Thunderbird which I have been using for ~15 years after transitioning from Eudora. After much frustration, I decided to move to the beta releases & the problem (long forgotten) went away. I thought that the stable release would catch up with me & I could revert to the stable versions one day but I understand this is not possible or advisable.

Q1 : Can I revert from v. 102 betas to the current stable ?

Q2: With the latest 102 beta 2 release (4 June 2022), all my tabs disappeared & I can not get them back. I may be missing the obvious but I can not see how to get them back. I tried reverting to beta 1 but no change. The update was done via the usual "help, about" when it prompted to upgrade. Help messages on the subject seem to refer to older versions where things were obviously different.

Clearly something went wrong & I am not sure if I can fix it myself or must wait for a fix. Any tips welcome.

I am now using gmail to collect my (multiple accounts) pop mail for me until the problem rights itself. I traditionally use pop as I am often offline due to location. This is also my first ThunderBird support question ever.

I have used Thunderbird for years, I think I may be forced to change! I have lost IMAP login Gmail, from Thunderbird, since the last update download (last email on Thunderbird is 6th or 7th June 2022 Thunderbird constantly says it cannot log in to GMail IMAP, requests to try again or get new password (for which it requires the password it will not recognise) Still using Gmail on my phone, have had to launch Chrome to use Gmail on my (old) iMac [running 10.13.6, High Sierra - can't update further], so I know the password is still valid. It is Thunderbird which seems to be the problem, here. Have read through various Problems/questions similar, but have not found a solution that helps

I had a similar problem with an update of Firefox, in that I was unable to use the browser - in the end I had to delete the browser, and several weeks later, re-downloaded. (This meant that I lost all my bookmarks etc, and had to re-establish passwords, but I'm now back to Firefox)

At random, whenever use a search box on a page, Firefox will lock up. The "loading" icon on the tab will animate as normal, but the entire window won't respond. If I press the show desktop button and then try to reveal Firefox, none of the windows will appear. I'd have to go into Windows Task Manager and be lucky enough to terminate the correct process containing the tab, or else I'd have to start all over again.

I have a local folder that has about 950 emails in it and is about 9MB in size. Today, when I choose an email in this folder to view, it just says Loading... at the top and then there is a blank screen below. I have tried Repair Folder. I have tried creating a new folder and moving emails over to it to view them. Same problem happens in the new folder.

The odd thing is... if I choose to view the email in a new tab or in a new window... it displays fine.

Any ideas what I can do to fix this?

Thanks for your assistance

Dear Community,

I am trying to set up my organizational email address on Thunderbird. I am able to receive emails just fine. But when I try to send, I get an error message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: SendAsDenied; {redacted}@hotmail.com not allowed to send as {redacted}@lehman.cuny.edu; STOREDRV.Submission.Exception:SendAsDeniedException.MapiExceptionSendAsDenied; Failed to process message due to a permanent exception with message [BeginDiagnosticData]Cannot submit message. {redacted: a long string of letter, numbers, colons, commas, and spaces} [EndDiagnosticData] [Hostname={redacted}.PROD.OUTLOOK.COM]. Please check the message and try again.

I think the error may be due to one or both of these complicating factors: (1) I also have my Hotmail account set up on TB. I think both accounts use Office 365. (2) My institutional email address and domain are NOT the same as the username/domain I use to log into this email account. To log into my institutional email from a browser, I go to outlook.office365.com and enter my login credentials: {redacted}@login.cuny.edu. This takes me to my institution's SSO login page. From there, I enter my login credentials, and then I'm directed back to Office365. But my email address is {redacted}@lehman.cuny.edu.

Even though my @lehman.cuny.edu account is selected as the "From" address in TB, the error message suggests that I am attempting to send from my @hotmail.com account. Weird.

In searching for answers, I found this page, but I don't think it solves my problem: https://support.mozilla.org/en-US/questions/1270491

BTW, I have tried a few different combinations of using the @lehman.cuny.edu or @login.cuny.edu names in the "User Name", "Account Name", and "Email Address" fields in the TB settings for this account. All result in similar error messages when I try to send an email from this account--or in some cases, losing the ability to receive messages too.

Here are the server settings I'm using in TB (I got these from the Office 365 settings after logging into my email account in a browser). IMAP Server name: outlook.office365.com Port: 993 Encryption method: TLS SMTP Server name: smtp.office365.com Port: 587 Encryption method: STARTTLS

I'm using: Thunderbird Version 91.9.1 Ubuntu 20.04.4 LTS

Can someone help me sort all this out please? I'd be very grateful!

I have W10 fully updated with plenty of RAM but in the last few weeks, after I boot up in the morning (I shut down every night) it takes a long time (several minutes) for either Firefox or Thunderbird to fully boot up . Firefox opens tomy home page, but does not complete for several minutes so I can go nowhere. If I am patient and wait it is fine the rest of the day..nice and fast. If I shut down and reboot again- very very slow opening of both for the initial time. I have run full virus scans, sfc/scannow, malwarebytes, cleared history and cache and cookies, turned off and on hardware excelerator. Any other suggestions? Word and Excel open quickly as usual.