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 … (read more)

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 55 4 119

Google search block on Firefox since last Firefox update June 2026

For the past few days when trying to use Google search on Firefox I get this message: "Our systems have detected unusual traffic from your computer network. This page ch… (read more)

For the past few days when trying to use Google search on Firefox I get this message:

"Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen?"

Then it makes me jump through several hoops to do a search on google.

This is a Firefox specific message as I can switch to Safari and there is no roadblock.

Is this happening to anyone else?

Any way to resolve?

Why this is a Firefox issue and not other browsers?

Open 3 3 50

Email set to descend (newest on top) and same for email threads, not working.

I already have View > Sort by > Date is selected, View > Sort by > Descending selected, and thread sorting set in settings. See screenshots. Threads sorting s… (read more)

I already have View > Sort by > Date is selected, View > Sort by > Descending selected, and thread sorting set in settings. See screenshots. Threads sorting so newest is at the bottom, they should be at the top. General emails are sorting properly, newest at the top.

Open 6 3 100

Duplicate folders cannot be deleted

I installed Thunderbird on my new laptop, then imported the profile from my old laptop The main screen has, under "Inbox", folders for Drafts, Sent, Trash, Archive and Sp… (read more)

I installed Thunderbird on my new laptop, then imported the profile from my old laptop

The main screen has, under "Inbox", folders for Drafts, Sent, Trash, Archive and Spam, which are being used by the program

Folders for Drafts, Sent and Trash also appear under "Local Folders" (along with Outbox) and these aren't being used by the program.

How do I get rid of these duplicate folders? "Spam" had a delete option, so that was easy, but the others don't.

I tried the two suggestions for a previous "Duplicates" question but they didn't resolve things.

Thank you

Solved 19 3

All received emails are going to spam folder (bug2068847)

Starting today (September 3), ALL of my received emails are being put into the Spam folder instead of the Inbox. FYI, I have been running Thunderbird (TB) for years and h… (read more)

Starting today (September 3), ALL of my received emails are being put into the Spam folder instead of the Inbox.

FYI, I have been running Thunderbird (TB) for years and have not recently set up any new filters.

I'm currently running Thunderbird 64-bit version 155.0 under Windows 11 Home version 25H2. I am also running Bitdefender Total Security, but I have turned off its Antispam function, both under my usual Standard User account and the Admin account.

I have tried:

1. Going into TB Settings|Privacy & Security|Spam and clicking on "Reset Training Data." 2. After closing TB, I deleted the training.dat file in my TB profile folder and restarted TB. 3. Right-clicked on my Inbox and Spam folders and clicked on "Repair Folder." 4. Exited TB, copied my profile folder to an external HD, uninstalled TB and reinstalled TB after downloading from the official download site. 5. Rebooted my PC.

None of these approaches has worked to solve my problem.

Thanks for any help you can give.

Solved 11 3

why do the emails go to local trash folder

Logged into Thunderbird this morning. On current version. Noticed that the local trash folder had emails in it. I have not changed any of the multiple account setting.… (read more)

Logged into Thunderbird this morning. On current version. Noticed that the local trash folder had emails in it. I have not changed any of the multiple account setting. Send some test emails fro 2 accounts and they ended up in the local folder trash. What has happened. I want this redirection to stop. What other demons have been created by the current update. HOW CAN i fix this problem?

Solved 7 3

Printing PDF attachment comes out blank

When I try to print a PDF attachment it comes out as a blank sheet. This used to work OK. The print preview is fine. I have altered the settings to open PDFs in acrobat a… (read more)

When I try to print a PDF attachment it comes out as a blank sheet. This used to work OK. The print preview is fine. I have altered the settings to open PDFs in acrobat as a workaround. Any help appreciated.

Solved 1 3

All incoming mail now gets marked as SPAM in Thunderbird

Since yesterday (27 Apr 2026) any and all mail that comes into Thunderbird gets marked as SPAM. I searched online and found people saying that I could reset the junk tra… (read more)

Since yesterday (27 Apr 2026) any and all mail that comes into Thunderbird gets marked as SPAM. I searched online and found people saying that I could reset the junk training filter, so I did this, but incoming mail was still marked as spam. The next suggestion was to delete the training.dat file. Did that, restarted Thunderbird and incoming messages are still marked as spam. The last suggestion was to turn off adaptive junk mail controls. Didn't want to do that because I assumed that it would let spam through. Nope. Turned it off, restarted Thunderbird and two emails from my work came in and got flagged.

I'm running version 140.10.0esr (64-bit) on Windows 11. I am using IMAP to connect to the mail server but it's not running any spam detection software (like Spamassassin). I know this because it's my server and even if it was, no updates have been preformed since the first of this month and this just started happening yesterday. Combine this with the bug that Thunderbird notifies me of incoming mail, even if it's spam (didn't post about this because there are plenty going back a couple of years), is starting to make me look for an alternative.

Open 5 3 169

Can't setup email getting strange notice. Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]

I downloaded the version on the site but I can't get it to accept my password all I get each time is this at the top of the box Component returned failure code: 0x804b000… (read more)

I downloaded the version on the site but I can't get it to accept my password all I get each time is this at the top of the box

Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]

Just how am I supposed to understand what that means. I would be grateful for any help you can give I've been using Thunderbird for over 25 years without any problems, I had to reinstall Windows and now I've got this problem.

Solved 7 3

Toggling off "Stories" doesn't turn them off

Hi folks! My Firefox just updated and I'm now receiving the recommended stories (along with the widgets and recent activity.) when I open a New Tab. I was able to disabl… (read more)

Hi folks!

My Firefox just updated and I'm now receiving the recommended stories (along with the widgets and recent activity.) when I open a New Tab. I was able to disable the widgets and activity and I see the place where I can turn off the Stories, but they are not going away.

In the "Customize" menu accessible via the pencil icon on the New Tab page, toggling Stories off does not make them go away; reloading the page, the toggle is re-enabled.

In the general Settings menu, accessible via the hamburger menu and under "Home and startup," I have Stories ("Exceptional content curated by the Firefox family") toggled off. The toggle does not reset, but the stories still display.

How can I fix this? Thank you all very much in advance.

Solved 2 3

Thunderbird won't download messages from Yahoo webmail

For the past several days, TB has not been downloading messages from Yahoo. When I click to download, it will say "downloading message 1 of 36" and then time out. I get t… (read more)

For the past several days, TB has not been downloading messages from Yahoo. When I click to download, it will say "downloading message 1 of 36" and then time out.

I get this message when I double-click the progress bar: "Connection to server pop.mail.yahoo.com timed out."

The settings have not been altered in any way.

I've looked through the various discussions on similar questions in this community and on Reddit, but none of the suggestions have worked.

Help please.

Open 4 3 40

URGENT: Thunderbird 154.0 is unable to print emails and is producing blank pages on multiple systems. Printing works normally from the folder, so the issue appears to be with Thunderbird. Immediate assistance required.

We are facing a critical printing issue with Thunderbird 154.0 (64-bit). Emails are not printing from Thunderbird and are coming out as completely blank pages. However, t… (read more)

We are facing a critical printing issue with Thunderbird 154.0 (64-bit).

Emails are not printing from Thunderbird and are coming out as completely blank pages. However, the same email/file prints perfectly when saved to a folder and printed from there. This confirms that the printer is working properly and the issue is specifically with Thunderbird.

The problem is affecting multiple systems in our office as well as our Ahmedabad branch, which is seriously impacting our daily work.

This issue requires immediate attention. Please investigate and provide a solution/workaround at the earliest.

Contact: Tanushka (HR) Phone: [redacted]

PLEASE UPDATE AS URGENT BASICS...

WE CAN ALSO CONNECT ON (CALL [redacted],,) OR SHARING THE SYSTEM THROUGH ULTRAVIEWER OR ANYDESK ECT,

REGARDS TANUSHKA CHAURASIA HUMAN RESOURCE GLR INNOVATIONS LTD (DELHI)


edit: redacted phone#'s from community support forum

Open 1 3

I can print e-mail, but not the attachmnet since yesterday

I can print e-mail, but not the attachmnet since yesterday. So I contacted HP-support, but it is not the printer. The last attachment I printed was before the last update… (read more)

I can print e-mail, but not the attachmnet since yesterday. So I contacted HP-support, but it is not the printer. The last attachment I printed was before the last update of thunderbird. What can i do?

Solved 2 3