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I've been using Thunderbird for many years with no problem. I'm now on v. 115.4.2 (64-bit). Suddenly, I can no longer send email. This is the message I get:

Sending of the message failed. An error occurred while sending mail. The mail server responded: <sy777@maine.rr.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again.

I contacted Spectrum and received their recommended settings. The only difference I have is that my Authentication is set to NONE and theirs to YES OR CHECKED

My incoming email works fine.

Please help!

Hi. First, I have more tech problems than I can shake a stick at and I m dealing with concussion and screens (monitors, cell phone, etc) aggravates and I don't track as well online as usual, so I'm asking for help sooner than I would hoping y'all can break it down very smply for me. Thanks for reading.

Thunderbird v.59.2 on Windows Vista desktop. Yup, Vista :-) Cable provider died, so years of emails to addresses using isp-provided email addresses are in Thunderbird but can't use emails.

In short term got TMobile 5G wireless and it is hideous, beware! For now I use my cell as hotspot to get on internet on old desktop.

I'll list what I've tried in a sec, but here's my ultimate goal: I want to get AT&T fiber installed and hooked up on new desktop (Windows 11) and install latest thnder bird there and bring over old files. Before installing at&t I have to formally cancel with former cable provider (it's in an odd limbo). I've assumed it's better to cull all email addresses related to those email accounts before severing all ties.

What I tried: Followed this thread https://support.mozilla.org/en-US/questions/1255223

I can't upgrade to v60 with Vista. I modified advanced config and added strict config Boolean setting and set to false and added check compatibility 59.2 setting and set to false.

The email crawler add on still gives me not compatible error. I restarted Thunderbird and that didn't help, unfortunately.

What can I do?

Again, my two main concerns are 1) harvest email address on my dead email accounts so I can send notifications of my new email addresses and 2) prepare to move all Thunderbird stuff to new desktop once I have working wireless internet to facilitate.

Thank you for your patience with my explanation and any help you can provide.

Still waiting for help with my annoying thunderbird problem. Once you help me solve it, my donations will begin. The browser link in my incoming email stopped working about 3 months ago. I have to right click on the link, start my browser manually and paste the link. I've tried it with Firefox, Edge and Chrome (preferred) and none of them work.

Every day. Videos won't play. sometimes one restart of firefox will fix it. sometimes multiple restarts are required before it'll work. The loading bar at the bottom of the video (on the seek bar) indicates the video is loading but it won't play. There have been times where I have disabled every single add-on and it would not work. Add-ons do not seem to be the cause. I have tried it in a private browser window with no joy. I have refreshed firefox, I have uninstalled and reinstalled it. I have tried disabling my antivirus. I have tested videos on websites in other browsers with no issue. The issue seems to be with the video player itself. overlays seem unaffected, I can use the seek bar and it shows the captions. I have tested different websites including Youtube, Vimeo and Steam. I tried many tens of times to get it working today to no avail. finally when I closed nearly all my tabs, the video worked (but I had also opened TOR and run avideo in that), I am not sure if this is the cause. If the cause is having multiple tabs open, this is an issue for me. I have a learning disability and likely ADHD and I have a set of tabs as my homepages so I don't forget things. If It's not the mutliple tabs, then what else can I do?

I have been receiving the following error code 'PR_END_OF_FILE_ERROR' on several website on my Firefox browser. Sometime, not all the time, I get the same error message while trying to use YouTube, while other times the site loads but says that I am offline and no internet connection. I have done all of the fixes that they say to use online and nothing seems to work. YouTube will occasionally work but none of the thumbnails will show up. Then there are other site that work fine.

I upgraded to 115.3.1 from 102.15.1 this week. I do not understand the large increase in version number, but I have not done any searches. I have a number of complains with this new version.

1) I want to move one message to a Local Folder, and I get the message at the bottom "nn messages moved from Inbox to Tr.ash". The one message I wanted to move remains in the Inbox, and I have to move it again. When I try to move them again, the folder displayed is NOT the one into which I had just tried to save. I have no idea if any messages were moved from Inbox to Trash, and I have no idea how I would find them.

2) The font size in the window is smaller than it was with 102, and there is blank space on the right. Is there a way to increase the font size?

3) I read one mail message and I process it (delete it or save it in a Local Folder). Most of the time, the next message in the Inbox is opened. But sometimes the window advances to a message further down in the Inbox, and I then have to go back into the Inbox to access then next message I was planning on reading.

Is there a Firefox setting that automatically clears cookies? When I turned my computer on, it had been cleared of cookies since the last time I had it on a few hours ago, but I didn't do it. No one else here to use the computer but me. I don't want cookies cleared automatically. How do I change it back to manual? I use Firefox Browser 120.0

thank you

why do you stalk and bother the users? i do not want to update! without warning you alter things i do not want you to alter. you take things out so people have to use risky 3rd party addons.

On the Facebook desktop, the Firefox push notifications keep switching to off. I cannot see these notifications as a result, as you can see from the image where the information is blank. I have tried everything possible to fix this issue, but it remains. Any help in fixing this issue would be appreciated.

My apologies if I am being a numpty, but I have been using Firefox for many years without issue, and recently (possibly after an update, but I cannot be certain), it has started to randomly freeze. I am running Ubuntu 22.04, and Firefox 119.0. I have demonstrated to myself that if I open a web page with links (but not always), and click on the link, I may still scroll up and down the page, but the mouse cursor never seemed to recognise the hotlink, and doesn't jump to it. The links will work on Chromium. I initially tried resetting the browser, thereby losing all my open pages, but that didn't work. That also removed all extensions ("all" two of them) and that didn't work. Firefox is now pretty much unusable. Any help to resolve this would be appreciated, as I cannot find any solutions online, and it seems I am not alone with this issue! Many thanks,

I had an issue with one of my domain emails hosted at ionos so I removed one of my domain accounts and reinstalled it I let is set up with default storage diorectory user/appdata and so on then went to sever settings and changed the local directory to the hard drive my other emails are stored on the only thing is I'm missing all the folders in the directory but my emails are still working. does any one know how I can fix this as I said I have already tried to remove the account and reinstall it and it still come up the same i have included an image of both accounts hosted at ionos not that that should make a differance where its hosted just that they should look the same in the directory!. thanks to any one who could shed some light on this. as you can see there are folders in one but theri missing the ones on the right. shame there is no little app from mozilla that can fix issues like this in thunderbird it would solve so many little issues that seem to pop up now and again.

I use TB daily on my PC .. yesterday all fine. Today W10 booted OK, I started TB and it opens with a page asking me to create an account ..... seems to have no details of my inboxes, accounts or filed mail

Rebooted PC - restarted TB ... same again

I checked on my iPad and all 3 accounts still working so it is limited to TB on my PC

Seems to have lost my profile(s) How do I recover ?

I only get 2 tabs ... blank Inbox and 2nd tab to set up email address (pics attached)

Does anyone out there know of a replacement for the Tab Groups replacement app? I have not updated Firefox past the v.55 only because I don't think it would work w/ any newer versions. I have found this to be the very best app I have ever used as I need to do a lot of research online and need something that will show all the windows and tabs on one page so I can easily go back and forth to a particular group quickly. Without this, I would have to spend hours finding the info and would only have one window in which to work. Ideally, a replacement would be able to use all the window/tab info I now have. Is there some way I could use this in some sort of legacy mode? I have several legacy apps, but can't readily recall how to do so. I think I tried this w/ the Tab Groups app and it didn't work, but am not certain. Suggestions much appreciated! Thanks, Wolfgang

Firefox 120.0 on openSUSE Tumbleweed.

Google Maps (https://www.google.com/maps) results in CPU being pegged at 100%. No other tabs open. All I have to do is load the URL and do nothing else. This behavior is repeatable. CPU stays at 100% until tab is closed or browser is shut down. Sometimes the browser will hang and its PID has to be killed.

Offending process:

username 4501 4416 76 11:40 ? 00:05:13 /usr/lib64/firefox/firefox -contentproc -childID 1 -isForBrowser -prefsLen 27513 -prefMapSize 244227 -jsInitLen 228948 -parentBuildID 20231116134553 -greomni /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja -appDir /usr/lib64/firefox/browser {659a1e89-c5da-416d-b720-558c24187847} 4416 true tab

When attempting to access the Help & Support section in Microsoft Intune through Firefox 120.0.1 on Windows it remains on a spinning wheel icon. I can access this successfully on the same PC through Microsoft Edge 119.

I have tried clearing out cookies, troubleshooting mode and re-installing Firefox to no avail. I've also tested on another Windows PC and have the same issue.

Win 10 Pro, Thunderbird 115.5.0, Mail Merge 10.3.0

smtp.comcast.net, Port 465, Normal password, SSL/TLS

Have been using Mail Merge for several years. Comcast e-mail send quota is 1000 messages/day. Mail Merge had been working well with occasional batches of 900+ messages.

Since updating to Thunderbird 115, Thunderbird stops sending e-mails after approximately 11 e-mails. Messages 5-9 kb each, no attachments. Screen shot of error message attached.

Thunderbird will resume sending if I exit Thunderbird, wait for cache to empty, restart Thunderbird WITHOUT the "ask to send unsent e-mails" activated, then use the "Send Unsent E-mails" menu item.

Do you have any idea what may be happening?

Ever since I decided to have a password to use thunderbird I do not receive any messages for alan.green27@ntlworld.com even when I am told that a code has been sent there. Why are they being blocked? I do get messages for leananger27@gmail.com which is not the lead e-mail.