Semua Produk Community Forum

I have turned off every junk filtering option in Thunderbird, globally and for each account, yet the application started and continues to mark nearly every incoming email I receive as possible junk -- even emails from MOZILLA... It is not my ISP, nor my email provider, as they are not filtering junk, either. The banner on the preview window says "Thunderbird thinks this message is Junk mail", so that tells me it is THUNDERBIRD that is doing this. How can I get the app to stop??? There are no helpful conversations in the forum, since I've tried all of the solutions that were presented. I'm about to just delete the app and use something else which is a shame since I've been using Thunderbird for probably 20 years, but I cannot continue if this problem does not stop.

MacBook Pro M4, OS v 26.0.1 Firefox runs fine as administrator. There is an issue with standard users. I have completely uninstalled and reinstalled Firefox multiple times from the Firefox webpage. When I try to run Firefox as a standard user a screen pops up. Firefox is trying to install a new helper tool - enter admin name and password. After I enter the user name and password the pop up screen disappears. If I click on the Firefox icon the same pop up screen appears again. I can select cancel, however, when I go to the Firefox icon it is bouncing up and down for several minutes. If I click on the Firefox icon again after it stops bouncing the process repeats itself.

One last thing Firefox was running fine until the latest update on 11/02/2025.

How can I resolve this issue?

Regards, David

I am a pensioner in te UK. Due to restricted mobility I spend a lot of time using Firefox to access many web sites. This normally works perfectly. Today I tried to access the web site of national chain store specialising in outdoor clothing and equipment because I need a new showerproof jacket. I have never used that site before, yet Firefox reported Error 403 : Forbidden. Have you people never been told tat error messages are supposed to be useful? What is Forbidden. Why when it has not happemed before?

The web site is https://www.millets.co.uk/

I have a web site so I have other browsers just for checking for layout problems.

I tried Chromium, same error but the message said You are not authorised to access this site. Presumably that is what your incompetent message should have said. But why should a pensioner trying to buy something from a chain store ever need any sort of authorisation?

I tried Opera. Connected me no problem!

I tried Edge. Connected me no problem.

Clearly somebody somewhere is an incompetent idiot, but it isn't me. So who is it? If it is yourselves then please do something to fix this.

I'm using Fennec Firefox on mobile and I'm having this problem where my the page refreshes on the slightest touch. I'd like to turn this gesture off all together. I have done some research and found this code: document.addEventListener('touchstart', function(event) {

   // Check for a swipe down gesture to prevent refresh action
   if (event.touches.length > 0) {
       // Prevent default action
       event.preventDefault();
   }

}, { passive: false });

document.addEventListener('touchmove', function(event) {

   // Prevent default action to avoid refresh
   event.preventDefault();

}, { passive: false }); I put it into a java script extension and it worked, but then I wasn't able to scroll up or down. I don't know anything about java or python, so if someone could give me a hint or point me in the right direction that would be helpful. I am also looking through the source code of Firefox looking for answers.

On latest nightly, starting about 24 hours ago, when I type things into the search bar I randomly get taken to a piece of my browser history instead of searching for the term in question.

If I hit back and then enter it repeats the behavior. If I hit back and prepend a ? then it relays the entire line with the ? included to my search engine.

I think there is an issue with the auto complete because it is not indicating that it is actually completing but that seems to be what is happening.

Maybe this is also related to the cursor lag I have seen lately in the search bar. You can be typing and it will display letter out of order or seemingly so until it catches up. Basically the cursor doesn't move in the search bar like it used to. That's been going on for over a month.

When I opened the browser, it prompted me about profiles. I clicked on it out of curiosity. However, when I tried to back out of it because I don't need any profiles, it created one anyway. Then whenever I would open the browser, it would prompt me to choose a profile. I don't need any profiles, and it was annoying that there was an extra step. There was the button to turn off the choose profile screen, but I guess I was steadfast in my annoyance, so I deleted the profiles to make it unable to show up. This, however, signed me out of Firefox, and when I logged back in, none of my bookmarks or history were there. I tried the sync option because I at least still had my history on the app, but it did not work. Frankly, I don't care, and I'll just make the bookmarks again. And maybe it should have made sense that deleting the profiles would delete everything with it. But I still think it's insanely stupid to not be able to back out of creating a profile. Took up my time and simultaneously gave me more work to do. I don't want any help or support just needed to voice my feelings.

In the past week or so, I've been having multiple issues with Thunderbird. First, Thunderbird [v140] suddenly started crashing a few minutes after opening.

I checked the help community and KB to try to find a solution and none of the following helped:

Opened Safe Mode, the application continued to crash. Created a New Profile, the application continued to crash. Close Thunderbird, then deleted the Parent Lock File, the application continued to crash. Upgraded to v144.0.1, the application continued to crash.

Uninstall Thunderbird, then reinstalled, the application stopped crashing.

Upon restoring my profile from backup, I discovered several folders were missing. When I checked the Mail folder, I found many of the .msf files were missing but the folder file names were there. So, deleted my profile, created another, and restored from backup again only have the same results. This time I copied the missing .msf files from my backed up profile Mail folder, with the same results. I checked the help community and KB again and found a suggestion to copy the folder files and missing .msf files to the Local Folders folder. After copying the folder files and missing .msf files to the Local Folders folder, the missing folders appeared, including subfolders, but under Local Folders, not in my main account folder. I checked further and saw that all my emails were in fact in those folders, including in the subfolders. So I then closed and reopened the application and clicked to 'get messages' and discovered the message filters weren't working for the previously missing folders that were copied to the Local Folders. I thought OK, I'll just redo those filters.

Later on, I opened Thunderbird to get messages and discovered none of filters for the previously missing folders that were copied to the Local Folders were working. I checked further and found that the folders were there, including the subfolders and emails except... the subfolders under the newest, most recent folder I created before the crashes started.

Here's the kicker... after copying the subfolders' file under the newest, most recent folder and the .msf files back to the Local Folders folder and reopening the application, everything's there again. But after closing and reopening they're, gone again.

After all these years of deleting and creating profiles and restoring from backups with very little or no problems, I've never encountered anything like this.

I need a little help. Thanks.

Back in the days I changed from the Microsoft browser to Mozilla, to get away from updates that made no sense and that the Microsoft team couldn’t even explain themselves. Now unfortunately Im in the same place with Mozilla. To remove the Home Button makes no sense, whoever did it, will not be able to explain, what positiv has been achieved by doing it, and asking for help is a waste of time, as we don’t get any useful answer. Spending 1 hours looking through all material written by Mozilla on this subject, I even found a person writing “it was done to give the users easy access to their Home Page” and then I just had to check, that I wasn’t by mistake talking to Microsoft.

Hello, For the past few days, I've been receiving three messages. My email provider (free.fr) tells me the problem isn't on their end and suggests I contact Thunderbird. Can you help me resolve this?

Thank you

I use Thunderbird to access my Hotmail account. I normally work on my Desktop Windows 11 system but have a laptop Windows 11 which I seldom access email with. When I just tried to update the laptop Thunderbird mail I eventually get the Thunderbird message "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox". There is enough free space on my drive and it succeeded writing 10522 messages before it came to a halt. I notice that the desktop is at 140.4.0 and the laptop is at 144.0.1 and help says they are both up to date.

Since the Desktop mail is up to date it would seem the quick solution is to replace the mail folder on the laptop with a copy of the mail folder from the desktop. Will this be a problem since they seem to be at different versions. Version 140.4.0 on the Desktop and 144.0.1 on the laptop.

when i m opening youtube it shows my subscribed channel and content but every where it shows please sign in or show me sign in look at the screen shot i have posted at right there is showing my profile pitcher and at right it show's me to sign in

Hello,

same issue as described here: https://support.mozilla.org/mk/questions/1487230 I use: 144.0.1 (aarch64) on macOS 26.0.1 (25A362) (MB Pro M1 Pro).

Since i updated to 144 Thunderbird works well once started for a few minutes and then starts eating memory and in a few minutes it uses all system memory (64GB) and when virtual memory is exhausted it crashes

Now using 145 beta with same problem.

Using google calendar and only one plugin (Clippings for Thunderbird), tried to disable plugins, calendar, hardware acceleration, tried to compact folders, clear cache, clear msf with no success

Yesterday, my ameritech.net email stopped working in Thunderbird. I get an error saying it's unable to log into the server. The email account works from outlook, and from a web browser, so I know I'm using the right password. I've tried it on more than one computer and it's only Thunderbird that is having the problem. It's working with my gmail account. Any help would be appreciated.