Hello. I have tried to copy my Thunderbird account to my MacBook. This has happened but it has only copied an empty saved e mail Folder. I was hoping for all my e mails, being my records.

I have saved relevant e mails to local folders in my Thunderbird account on my Applemac. I opened up Thunderbird on my MacBook and downloaded my Thunderbird account but i… (funda kabanzi)

I have saved relevant e mails to local folders in my Thunderbird account on my Applemac. I opened up Thunderbird on my MacBook and downloaded my Thunderbird account but it did not copy those local folders, merely 1 empty folder. Without these also shown in my Thunderbird account when I am away from home, I cannot see those records. I am struggling to find a solution. Are you able to help please? Alan Dowler

Open 90 330

Massive issues since most recent Firefox update.

Hello! Since the latest update to Firefox (153, I believe) my Firefox has not worked. It starts up perfectly fine, but quickly freezes, becomes non-responsive, and needs … (funda kabanzi)

Hello! Since the latest update to Firefox (153, I believe) my Firefox has not worked. It starts up perfectly fine, but quickly freezes, becomes non-responsive, and needs to be closed. No matter how many times I attempt to open it, the same thing occurs. There’s been been occasions where it hasn’t frozen immediately so I have been able to turn off hardware acceleration as well as remove my theme and disable all my add-ons/extensions, but this has done nothing. Creating a new profile does not help, nor does trying Safe Mode: the same thing happens no matter what. I tried to reinstall the update, but this also did nothing. I haven’t yet tried to uninstall & reinstall or do a Firefox refresh as those are my last resorts and I won’t do them unless I’m sure they’ll make a difference. I haven’t downloaded any new extensions recently, and this only started happening after the most recent update. I’m not sure what else I can try at this point, and am very frustrated.

Open 54 2 119

How do I transfer Thunderbird from my PC to my Mac?

I have been using Thunderbird on my PC for years and when I got my last PC, I found a article to help me move my files. I am now looking for instructions on how to move … (funda kabanzi)

I have been using Thunderbird on my PC for years and when I got my last PC, I found a article to help me move my files. I am now looking for instructions on how to move my Thunderbird files from the PC to the Mac so I can continue using it as I have been.

Open 45 40

Thunderbird hangs my computer/machine periodically (rarely) whilst messages are being retrieved.

Thunderbird causes my machine to 'hang' from time to time, 1. often for up to a second and usually a number of times in quick succession on each ocasion. Sometimes this … (funda kabanzi)

Thunderbird causes my machine to 'hang' from time to time,

1. often for up to a second and usually a number of times in quick succession on each ocasion. Sometimes this happens frequently - say every 5 or 10 minutes - sometimes only after an hour or more since the past occurrance.

2. My machine hangs completely - nothing will work, mouse, keyboard, sound, other apps etc. If I happen to be typing (into any app - including Thunderbird - when this happens, input ceases, the cursor freezes and - if the problem persists for a second or two, Windows reports "[app] is not responding"

3. I cannot be certain, but I believe the problem occurs whilst messages are being retrieved.

This is a very serious problem as it means that I can never leave TB running as the problems it causes are not acceptable.

4. This means I cannot deal with incoming messages without periodically re-starting TB - which is an utter PIA.

I am running Win 11 Professional on a 2-year old machine with 64 Gb of memory. I have run TB in Troubleshoot mode, I have confirmed that the problem occurs regardless or whatever other apps are running (or none) and I have proven conclusively that no other app causes any kind of similar problem.

Looking forward yto hearing if others have had the same issue and what can be done about it.

Open 35 189

Websites load slow or not at all despite fast internet connection

I find that my desktop browser firefox is very slow or doesn't work at all on a lot of websites like amazon or fortnine. My internet connection and computer are not the … (funda kabanzi)

I find that my desktop browser firefox is very slow or doesn't work at all on a lot of websites like amazon or fortnine.

My internet connection and computer are not the issue: 270Mbps (wired connection) Processor AMD Ryzen 7 9800X3D 8-Core Processor (4.70 GHz) Installed RAM 32.0 GB (31.1 GB usable) Graphics card NVIDIA GeForce RTX 4070 Ti SUPER (16 GB) Storage 3.58 TB of 10.92 TB used System type 64-bit operating system, x64-based processor (Windows 11)

My old PC and my mobile phone runs these website fine.

Sometimes the website will work for a moment, but stop and just load for ever after I open a new tab or clink a link. My task manager doesn't show any ethernet usage despite the tabs indicating they are trying to load. Refreshing the tabs does nothing and no matter how long I leave them they don't load. All my drivers, OS and programs are up to date. I have disabled my enhanced tracking protection and I don't have any adblockers. I have tried using the CMD "ipconfig -renew" and using ccleaner to clear out my cookies and cache but, nothing seems to have any lasting effect.

I am losing my mind trying to fix this. Why can I not browse the internet on my PC?

Any help on this would be amazing and much appreciated.

Sincerely, Calvin

Open 32 189

Youtube freezes constantly and irreversably

I have no idea what is happening. Whenever I try to use youtube on firefox the site just freezes. I can still scroll up and down, but nothing that wasn't already loaded l… (funda kabanzi)

I have no idea what is happening. Whenever I try to use youtube on firefox the site just freezes. I can still scroll up and down, but nothing that wasn't already loaded loads, I can't click on anything, and nothing except scrolling does anything.

The reload, home, and even screenshot buttons don't work in these frozen youtube tabs. The only way to do anything is to open a new tab and close the frozen youtube one.

Youtube is completely unusable because of this.

I turned off every single addon, I restarted firefox, I restarted the entire computer, I tried in a private tab. It still freezes every time.

I don't have a VPN, I do not have the problem on any other website (even other media-players), and I don't have a clue what is happening.

I do have youtube premium.

Any help would be appreciated. I need to watch stuff for my studies but I just can't

Operating system: Windows 11

Open 31 149

Thunderbird not connecting to server. Cannot send or receive emails.

Thunderbird not connecting to server. It says timds out and an error occurred connecting to mobile.charter.net. I can neither send or receive emails. This started 8/20… (funda kabanzi)

Thunderbird not connecting to server. It says timds out and an error occurred connecting to mobile.charter.net. I can neither send or receive emails. This started 8/20/2026

Open 30 5

There's a frightening ambiguity in the "add new account" page please help

Hello. I am trying to add a new provider, which means adding a new account. When I click "Add new account" it takes me to a page that asks me to enter my existing accou… (funda kabanzi)

Hello. I am trying to add a new provider, which means adding a new account. When I click "Add new account" it takes me to a page that asks me to enter my existing account. Does this mean the currently running account or the new account?

Open 27 159

Can someone help me in real time? I have to move twenty years of records to a new computer.

I have Thunderbird on the old computer. For twenty+ years I have read the instructions for moving it to the new computer. i cannot understand/am not at all confident in m… (funda kabanzi)

I have Thunderbird on the old computer. For twenty+ years I have read the instructions for moving it to the new computer. i cannot understand/am not at all confident in my ability AND I have only ONE keyboard/mouse. I have to move it from one computer to the other to operate them.

Right now all email is on the old computer, no email is on the new computer. No email has ever been on my cellular telephone. One set of periforals - keyboard/mouse.

I DO have the Bravura, the Plugable transfer cable and accompanying software, and many other things came across, but not the Thunderbird.

I want to do the move/installation correctly so that not one stored email is lost or corrupted.

I need help.

Open 23 10

this new version still did not help

i have tried anew profile got a the newest version and it still does not help i guess the people doing the updates have no idea how to fix the issue or care n… (funda kabanzi)

i have tried anew profile got a the newest version and it still does not help i guess the people doing the updates have no idea how to fix the issue or care none of you can really help all the idea you have had i have tried and still i get the same Firerfox running but not responding' guess you will force me to go to chrome instead which does not do this nor does Edge so you can not tell me it is not a firebox issue because neither Chrome or hedge with by the way all the same desktop icons i have had for years work

Open 22

how to get to my mailbox

This is absolutely insane. I set up a email account(also did about a year ago) and I can not get back to my mail. Why in gods name is it so difficult? I have multiple ema… (funda kabanzi)

This is absolutely insane. I set up a email account(also did about a year ago) and I can not get back to my mail. Why in gods name is it so difficult? I have multiple email accounts with most all the major email websites and this one is utterly impossible to use. I just keep ending up in the same spot with no information to help get out of the endless circle. I don't even know if I could find my way back to here. I will give you my email address to try and get something more constructive than the past two days. I want to make mozilla products my main users for all my different platforms to simplify my life but I am having my doubts about thunderbird. So far it is a useless time waster. I'm shocked that this is under the Mozilla name. I normally associate Mozilla with high quality, easy to use products. My goal is to have all the phones, tablets,laptops, and desktops operating on linux and mozilla. Thank you in advance. X@yahoo.com

(PII redacted by moderator)

Open 22 150

Secure Connection Failed

When following a link from a news website I keep getting this message - Secure Connection Failed - The page you are trying to view cannot be shown because the authenticit… (funda kabanzi)

When following a link from a news website I keep getting this message - Secure Connection Failed - The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. It loads on my iPhone and other browsers using the same link. What setting do I need to address to get this to stop?

Open 22 90

recent firefox update can no longer copy and paste when creating a blog post in Squarespace

recent firefox update can no longer copy and paste when creating a blog post in Squarespace, I have been using squarespace for around 15 years for my websites and I have … (funda kabanzi)

recent firefox update can no longer copy and paste when creating a blog post in Squarespace, I have been using squarespace for around 15 years for my websites and I have never seen this issue, Firefox 15.1 installed and all of a sudden when trying to create a blog post in Squarespace, when I right click a text box pop up and it no longer says paste so I can no longer copy and paste text - this is more than a little annoying, you will not be surprised to know that I am now using Chrome to create my posts, there is no issue in chrome. I am a firefox geek! how can i solve this problem, I just did another update from Firefox, the issue remains I have been using computers for 40 year so I am not a novice but software glitches, I am lost

Open 21 346

Cannot access email accounts

Neither my wife nor I can access email on our respective PCs. This has been the case for four weeks. We can access email by our Android phones, but we really want to use… (funda kabanzi)

Neither my wife nor I can access email on our respective PCs. This has been the case for four weeks. We can access email by our Android phones, but we really want to use our PCs. I've tried to resolve the problem and failed. Previous to this failure, I had an account with BT but this was transferred to EE. When I attempt to log in to my mail account, I receive the message "Could not connect ... :the connection was refused". I can also add is that in my Account settings, Outgoing Mail server I see a message "Connection to server mail.btinternet.com:465 failed."

Open 21 40

Urgent question: Wrong email group when I sign in coming up

My school email's storage and emails will expire end of today (June 30th, 11:59 PM EST). I accidentally thought the account would just be frozen at that time, but realize… (funda kabanzi)

My school email's storage and emails will expire end of today (June 30th, 11:59 PM EST). I accidentally thought the account would just be frozen at that time, but realized they would be deleting the account all together for universities alumni.

When I downloaded Thunderbird to transfer my emails, I'm logging in, but I'm getting prompted to log in to Microsoft rather than Gmail for some reason. The email should be Google Workspace. I'd love to know what's going on as I'm not sure and my school's IT support said it's a problem with Thunderbird as it should be gmail for me.

Anyone know of any fixes or suggestions?

Open 21 129

large amount of RAM

Gentlemen, isn't your browser using a lot of RAM? I've been freaking out about it in recent years. That's only with 25 tabs open!! Despite the fact that the system was in… (funda kabanzi)

Gentlemen, isn't your browser using a lot of RAM? I've been freaking out about it in recent years. That's only with 25 tabs open!! Despite the fact that the system was installed just a day ago, without any tweaks!!!

Open 21 218

Cannot copy Thunderbird folder to new installation

I have followed the instructions that several people give to transfer my existing Thunderbird installation to a new computer where I have just installed Thunderbird. That… (funda kabanzi)

I have followed the instructions that several people give to transfer my existing Thunderbird installation to a new computer where I have just installed Thunderbird. That is I copied the Thunderbird folder and put it in the Roaming folded found in %appdata%. Both computers are on Windows 11. When I open the new Thunderbird, it does not recognise it. Furthermore, in Help>Troubleshooting information>Profile folder when I click to open the folder, it looks for a folder that is not in my previous Thunderbird installation: qr19mupe.default-release instead of the one that came with my imported Thunderbird folder. Has this happened to anybody and found the solution? Can anybody help please?

Open 20

All e-mails in my Inbox disappeared

I did Edit - Find - Search Messages and then Edit - Find- Global Search and searched for messages. Now all the e-mails in my Inbox disappeared. What can I do? Thank you. … (funda kabanzi)

I did Edit - Find - Search Messages and then Edit - Find- Global Search and searched for messages. Now all the e-mails in my Inbox disappeared. What can I do? Thank you.

Open 20 1 60

Intranet site 401 Unauthorized kerberos SSO

Hi! We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized w… (funda kabanzi)

Hi!

We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized when trying to access it from Firefox. I have tried adding the urls to: network.automatic-ntlm-auth.trusted-uris network.automatic-ntlm-auth.allow-proxies: true network.automatic-ntlm-auth.allow-non-fqdn: true network.auth.force-generic-ntlm: false network.auth.force-generic-ntlm-v1: false

Ingocnito mode , same error. I have tried disabling all plugins. Disabled DNS over HTTPS.

HTTP/1.1 401 Unauthorized Server: Microsoft-IIS/10.0 WWW-Authenticate: Negotiate X-Powered-By: ASP.NET Date: Mon, 25 May 2026 08:15:41 GMT Content-Length: 0

Regards Rasmus

Open 20 70