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When I try to play a video on Firefox desktop, it takes it a long time to load. Once it has loaded, whenever I pause it for more than a few seconds, or if I try to skip around the video (either by clicking around in the loaded section of the progress bar or using +/- seconds buttons), the video begins buffering again before the video resumes. This makes it extremely difficult and frustrating to watch anything that requires me to pause, rewind, or fast forward. I've noticed this issue affect multiple video viewing sites, such as YouTube, Vimeo, and Netflix. My roommate also uses Firefox, but doesn't have this issue, so I know it's not a problem with my internet. I thought it might be a problem with my computer, but I tried to replicate the issue in Chrome and everything worked fine there. The issue has persisted almost a week. I have:

• Rebooted my computer several times
• Deleted my history/cache
• Disabled my extensions
• Turned off Java scripts in firefox (this disabled my ability to load sites like YouTube completely, so I turned it back on)
• Updated my computer
• Updated my graphics drivers
• Refreshed firefox
• Uninstalled and reinstalled firefox (and rebooted my computer)
• Uninstalled and reinstalled firefox AND deleted all the data it stored on my computer (and rebooted my computer)

I am currently using version 123.0.1 of Firefox. My OS is Windows 10 22H2.

Good morning. I need help with sending emails in Thunderbird. The problem has existed for a couple of days now and is confusing as some emails are sent and others fail. I am receiving mail OK. Details of my setup are :- I am using a HP All-in-one desktop running Windows 11 with Norton 360. My Thunderbird account settings: Server type: IMAP mail server User name: ****@gmail.com Server name: imap.gmail.com Port: 993 Connection Security: SSL/TLS Authentication: OAuth2 Outgoing Server (SMTP): Google Mail – smtp.gmail.com (Default) User name: ****@gmail.com Port: 465 Connection Security: SSL/TLS Authentication: OAuth2

The problem: I only recently set up Thunderbird and at first it seemed to working OK. However, now when I try to send a message, after some time, I the following error message :-

"Send Error Message Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com timed out. Try again."

What is particularly confusing is that some messages are being sent. I have tried several fixes that I found from the Mozilla, Google and Norton web sites but none of the fixes resolved the issue. Any assistance would be very much appreciated.

Regards Mike

PS: I have 2 email accounts set up in Thunderbird. I just tried sending a test message from the Gmail account to the Bigpond account. From the Gmail account it appears to have been sent but in the Bigpond account an error message appeared as follows :-

"Could not connect to the mail server smtp.telstra.com; the connection was refused."

I don't know if this is a related issue or I have another one to resolve.

Similar to the issue described in this thread (https://support.mozilla.org/bm/questions/1240674), I am unable to open Firefox - it simply refuses to open. I've tried multiple times, the option key, and re-installing. Nothing seems to work, which suggests something about my user settings is the issue, but a) I am not keen on deleting this if possible and b) I won't delete my user settings unless that is necessary. Like the attached thread, I am happy to attach crash reports, but without the ability to even open Firefox properly it's not obvious how I do this - force-quitting it just sends a report to Apple.

Any help much appreciated - I'd quite like Firefox working again.

My laptop is a MacBook Pro 13 2020 (Intel) running macOS Monterey (12.7.4). I installed the version of Firefox available for download as of writing (v127.0 based on Finder).

Today for the first time after the latest update 127.0 (64-bit), my many firefox pages and tabs crashed and closed and a pop up to send crash report.

So I have fired up firefox again to find only a single page opens up, I have lost probably 16+ pages with multiple tabs on each, been like that for months, I have 32GB memory so there is normally no issues or slowness. However after the crash, even though only a single firefox page is open, windows task manager shows Firefox (20) and if I expand the task, I can see each firefox is taking lots of memory.

So it looks like the old session pages/tabs are still there somewhere but not accessible, I would like to get them back if possible. I went through reseting it to default, disabling the add ons etc but nothing has worked.

For months I was experiencing the problem of "Thunderbird not responding" occasionally. It was a short duration issue (a few seconds to a minute). I reinstalled Thunderbird several times without success. I read almost every comment available online about this problem and I tried many ideas and recommendations I found without success. Most recently the problem became so serious that it was not a nuisance any longer. It was nearly impossble to work waiting for minutes to open an email or to continue typing while preparing a message and being interrupted by the problem I am describing. I ran Thunderbird in safe mode and determined that none of the add-ons is causing the problem. I turned the firewall OFF and determined that firewall was not causing the problem. I then decided to run Thunderbird in Offline mode and found that the program works normally. Then while in Offline mode I decided to download more messages and the program asked me if I wanted to switch to the Online mode. I said yes. New emails were downloaded and without going back to the Offline mode I was able to work normally without any occurrence of the "Thunderbird not responding" problem. I have been using this workaround for several days now. I download a number of eamails. I try working in Online mode and I cannot do it. I switch to Offline and work fine. I switch back to Online mode and I don't see the problem any longer for the whole day. Do you have any idea as to the origin of my proble? I am running Thunderbird 115.10.2 64 bit on Windows 11. I had the problem originally using Lenovo T490s and more recenlt Lenovo X1 Yoga

Automatically hide taskbar in desktop mode => Enabled Firefox => Maximised When cursor is moved to outer edge of screen, taskbar should unhide (Expected behaviour) but in this case it remain hidden (Reality). Firefox along with all other spinoffs give same result. Chromium based browser works perfect, and taskbar automatically unhide itself.

As OLED screen have became common as monitor, Taskbar auto-hide is must. If this issue cann't be fixed I may have to change my primary browser which I used for almost 15 years.

Kindly, look into it. If Chromium can do it, why not Firefox.

I am trying to reach an internal company website ([URL]), with a certificate chain rooted in a company certificate authority. This works fine in Chrome, and worked in Firefox on my previous computer. But i recently got a new machine, and something somewhere is not quite right. I get an error message looking like this (between the ~~~s):

~~~ Someone could be trying to impersonate the site and you should not continue.

Web sites prove their identity via certificates. Firefox does not trust [URL] because its certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates.

Error code: SEC_ERROR_UNKNOWN_ISSUER

View Certificate ~~~

If i click on the error code, i get these details:

~~~ [URL]

Peer's Certificate issuer is not recognised.

HTTP Strict Transport Security: false HTTP Public Key Pinning: false

Certificate chain:

[certificate]

[certificate]

[certificate]

~~~

If i click 'View Certificate', i get a chain of three certificates:

1. Subject common name = [certificate]
2. Subject common name = [certificate]
3. Subject common name = [certificate]

If i go to Settings > Privacy & Security > View Certificates > Authorities, i can find both the [certificate] certificates. As far as i can tell, they are identical - i can open the certificate from 'View Certificate' and the corresponding one from the certificate manager and flip between tabs, and all the details are the same.

I am using Firefox 120.0, via a flatpak, on Ubuntu 22. I have given the flatpak access to /etc/ssl/certs, where my company's internal CA certificates are located.

To me, this seems like it should all work. The server has a certificate signed by an internal CA, which is signed by another internal CA, and both those internal CA certificates are in my certificate manager. So what is going wrong? Is there any way i can debug this?

Started getting error April 10. I have SSL/TLS and Oauth2 set for Thunderbird account server and smtp. Looked thru lots of web messages - no joy. Via web browser I can connect to my Yahoo email without issue. My gmail account on Thunderbird still works fine (with its unique third party password). I am on current Thunderbird release 115.9.0 (64 bit). I disabled the only add-on that Thunderbird was using. Windows 11 Pro which is up to date. Plenty of open disk space. Have rebooted my PC multiple times.

Looking for suggestions Thanks Bob

Firefox updated yestarday. I see these changes: extension are gone, theme settings were switched from Dark to Light, "Startup -> Open previous windows and tabs" option went from checked to unchecked. These things are still fine: bookmarks, saved passwords and history. Tried reverting to older Firefox version, but it didn't help so I installed the new one again. I then checked profiles in AppData folder and I see three of them. The problematic one I just described, the one that was automatically created when I tried to downgrade to previous Firefox version and the one which only contains empty "parent.lock" file. There is nothing useful in "Extensions" folders (first profile has addblock extension file which I just installed, second profile has langpack extension file). I don't particularly care about which specific extensions I used since I can just reinstall them when I need them again, but one of those extensions contained custom written scripts which were running on specific sites to help me with my work. Those scripts are what I really want to recover.

I just started having an issue while watching Live Streams on Youtube with FireFox. I'll load the live stream and it will run for about a minute then it will switch to the streamers previous recorded stream. I opened Youtube on my iPad and on Edge browser and the Live stream keeps playing the live stream but on FireFox it only lets it run for about a minute before flipping the playback to the previous recorded video of that streamer. I tried clearing my cache for Youtube and I have no extensions running. I have Youtube Premium and run no adblockers. I have also tried safe mode but the problem persists.

Any idea what could be happening?

All of our "read" emails, --from all of our accounts -- have suddenly disappeared. All of the folders and subfolders are still present. We still get new email, but as soon as we read it, it's gone. We have had these same email accounts for years and have not made any changes. In Account Settings --> Synchronization & Storage --> "don't delete any messages" is checked. "Read" messages are still on our server.

So, 1) Why did this happen? 2) Is there any way we can get our messages back in Thunderbird?

Hello,

I just installed the latest release of Mozilla Thunderbird (24.4.0) and I'm trying to create a "Vacation Response". I read on the Mozilla Support site:

Another option is to create a Message Filter and respond to all incoming messages with a template.

(see https://support.mozilla.org/en-US/kb/vacation-response?esab=a&s=out+of+the+office&r=3&as=s )

I've created a template and saved it and then I tried to create a message filter. However there is not an option to "Reply with Template" in the list of choices for the action to perform. I see action choices, for "Copy Message To", "Move Message To" and "Forward Message To", but not "Reply with Template".

Why is it missing and how to I get it to appear?

Thank you for helping.

Every time I start Thunderbird, I get the "System Integration" notification box even though the "Always perform this check when starting Thunderbird" option is NOT checked. Please let me also clarify, I DO NOT want system integration. Therefore, I have unchecked all boxes that are not greyed out and chose "Skip Integration", since there is not a box for "Do Not Integrate". Can someone please tell me how to stop this aggravating box from continuing to show up, without integrating Thunderbird or resorting to a different email client.

I am running: Operating System: Windows 10 Home Thunderbird: 45.5.0

Changed IMAP to POP. Now I have errors, such as "msgFilterRules...Conflict.dat. Deleted all my message filters, but this message STILL pops up.

I also have popstate-1.dat & popstate-2.dat 2 Junk folders, 2 Outboxes..

I have screwed this up somehow....

I have recently added a Microsoft exchange account to Thunderbird. I am able to connect to and receive emails through imap, but I cannot send emails. The error I get is a 'Login Failed' error with the message 'Login to server smtp-mail.outlook.com failed.' but I have double checked that my login information is correct (and reset my password and tried again). I can also happily send emails from the webmail and from a desktop copy of Outlook. I have tried all the suggestions in the 'Cannot send messages' troubleshooting article with no success.

My outgoing server settings are:

Server Name: smtp-mail.outlook.com

Port: 587

Authentication method: Normal password

Connection Security: STARTTLS

This is a Microsoft Exchange email, I am running Thunderbird 52.9.1 on Windows 10. Any suggestions on what the problem might be?

Firefox hangs for 5 seconds between every type of download between the "Ok" of the "Save As.." dialog and the actual download of the file.

Any ideas how to resolve the issue or troubleshooting tips?

I'm currently using Firefox 108.0.2 (64-bit) on Windows 10 Pro 22H2

Thanks!

Having trouble with my Charter Spectrum mail account. I am able to receive e-mails, but cannot send them. When I send a mail, I get the "Login to server mobile.charter.net failed" message. However, I believe I have the correct setting for SMTP server. Charter Spectrum says I should have mobile.charter.net set as the SMTP server, port 587 selected, SSL enabled, and the authentication password should be the same as my IMAP incoming for the account.

So when I get this message about login to server failed - I re-enter the same account password, and get the same message result. Why would I be able to receive e-mails, but not send using the same server and password?

I was able to go onto Charter Spectrum website and login and send and receive e-mails from their web mail app. Although, I hate using it, and would much rather use TBird.

Thanks in advance. C.Bariou

When I click on account setting I get a small box labeled account settings with one button with a drop down arrow which works and gives a selection of: Add an account mail account, add chat account, add feed account,add other account or remove account. I cannot see any other settings

Subject: Account Settings -> Server Settings Occurrence: after update to 52.1.0 (32 bit)

My default setting was unchecked 'Automatically download new messages' and checked 'Fetch headers only'. After automatic update to 52.1.0 I could no longer download full emails from my email server by clicking on 'Download the rest of the message' hyperlink. However option 'Get selected messages' works and is active (available) from the start. I know this bug (inactive 'Get selected messages' after opening of Thunderbird) was on the Mozilla's back burner since ancient times :).

Setting opposite to default: checked 'Automatically download new messages' and unchecked 'Fetch headers only' loads emails without the problem but is potentially unsafe.

My contact is on Hotmail. I can receive an e-mail from them. When I replay, it is returned to me with the following: This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: [email removed]@hotmail.com SMTP error from remote mail server after MAIL FROM:<[email removed]@earthlink.net> SIZE=3240: host mx4.hotmail.com [104.44.194.236]: 550 SC-002 (SNT004-MC10F22) Unfortunately, messages from 209.86.89.69 weren't sent. Please contact your Internet service provider since part of their network is on our block list.