Latest Answers

• When I click on a link in a TB email message it says "This file does not have an app associated with it..."

  Firefox is my default browser. .htm and .html point to Firefox. HTTP and HTTPS point to Firefox in "Choose default apps by file protocol" I thought that computer actions wer…

• When I click on a link in a TB email message it says "This file does not have an app associated with it..."

  I have been busy with other problems, so I have not had time to experiment with Troubleshoot Mode. And the problem occurs very infrequently, so it might not occur even in Trouble…

• When I click on a link in a TB email message it says "This file does not have an app associated with it..."

  I do not know what extensions and/or themes I have installed in TB. Is there a way to determine this?

• When I click on a link in a TB email message it says "This file does not have an app associated with it..."

  I still have the problem, and it has occurred on non-Facebook links. There is nothing in the error console. It is not a major problem, as a second click usually get me to the UR…

• I Cannot Delete Some Messages.

  I solved my problem. I used grep, head, and tail to find the offending message in my large Inbox file, and I could not find it. Then I realized that the Inbox.msf must be corrup…

• When I click on a link in a TB email message it says "This file does not have an app associated with it..."

  IIRC, I have seen this only for Facebook links. My comment about the Error Console is a basic question about error debugging. Twice I have looked in the Error Console and found …

• Cannot Rotate a JPEG Attachment in an E-mail

  I installed that add-on, and I am not sure how to use it. I took an e-mail that has an image attachment, and I opened one of the three JPEG images. It opened in the normal appli…

• Cannot Rotate a JPEG Attachment in an E-mail

  Thunderbird will NOT install the add-on because, as I wrote above, "it has not been verified". I am not sure how an add-on gets "verified".

• Cannot Rotate a JPEG Attachment in an E-mail

  Thanks for the reply. I downloaded the file; it has an .xpi filetype. When I tried to install it, Thunderbird would not install it because "it has not been verified". Also, …

• Cannot Rotate a JPEG Attachment in an E-mail

  Is anyone monitoring this forum? There has been no response yet.

• Excessive pagefile.sys Usage by Firefox

  I normally do not have a problem with no one responding to my posts. What is happening? Thanks. This is still a problem (4/10/2025).

• Excessive pagefile.sys Usage by Firefox

  Has anyone seen my post that is over one month old?

• Thunderbird Quick Filter SLOW

  Wayne, thanks for the information. Is there a projected release when this bug fix will appear?

• Thunderbird Quick Filter SLOW

  I just ran a test. I removed the "Order Received" column, and I turned off "threads" . I did a search "lgb" on my mail messages, and it took a while. The "X" in the upper right…

• Thunderbird Quick Filter SLOW

  Wayne, in my case the columns are "thread", Subject, Correspondent, and Date. The inbox is sorted by Date. I have 86,000 messages in my in-box. (I am on many candidate mailing …

• Thunderbird Quick Filter SLOW

  Thanks for the information. I looked at that bug, and there was a lot of dialog. I did not see a workaround, nor did I see the release in which the bug was fixed. A comment 4 d…

• Thunderbird Quick Filter SLOW

  Has anyone seen this? I have not seen a response, and it is a BIG problem for me.

• Thunderbird Quick Filter SLOW

  Here is more information. I had a problem with very slow mail deletion. I appended to this thread: https://connect.mozilla.org/t5/discussions/thunderbird-extremely-slow-deletin…

• POP3 OAuth2 Authentication

  Thanks for the reply.

• POP3 OAuth2 Authentication

  I solved the problem (with the assistance of Gene Smith) by generating a new Mailkey and using it as a "normal" password. I had assumed that Mailkeys were used only with OAuth2 a…

• POP3 OAuth2 Authentication

  I deleted the saved password for inbound.att.net, and I am not sure how/where to cut-and-paste one of the two Keys I had generated. The last Error Console has these lines: ---…

• POP3 OAuth2 Authentication

  I reverted some changes: I went back to port 995 and SSL/TLS. I had misread the documentation at https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thun…

• Multiple Problems ith Thunderbird 115..3.1

  I have 64-bit Thunderbird installed in Win 10 Pro 64-bit.

• Multiple Problems ith Thunderbird 115..3.1

  115.4.1 release notes says "fixed Message list scrolling fixes". I assume that this is my problem 3).

• Multiple Problems ith Thunderbird 115..3.1

  I upgraded from 115.4.1 to 115.5.0 today, and problem 3) seems to have been fixed. Is there a list of bugs that are fixed in 115.5..0? Problem 4) has not been fixed. Wayne solv…

• Multiple Problems ith Thunderbird 115..3.1

  Wayne, as far as I know, I have no add-ons to TB. I have attached a screenshot of part of my TB window.

• Multiple Problems ith Thunderbird 115..3.1

  Wayne, the error message is the same, but the lead-in is different. As I do not know the underlying code, I cannot say that they are related. If someone is working on a fix for …

• Multiple Problems ith Thunderbird 115..3.1

  Here is more info on problem 4). I tried to move a message into a Local Folder, and the message was not moved. I decided to look at the error console, and I saw this line at the…

• Multiple Problems ith Thunderbird 115..3.1

  Wayne replied (and solved problem 2). But no one has replied about my other three problems. Problem 1) is an annoyance with which I can live, as I know what is happening. But p…

• Multiple Problems ith Thunderbird 115..3.1

  And I now have a new problem: 4) I read a message and want to move it to a Local Folder. Sometimes the message is not moved, and the "Message" menu still has "Move to xxx" aga…

• Multiple Problems ith Thunderbird 115..3.1

  I have new info about problem 3). I read a message and decide to delete it. Then, the messages displayed after the deletion is a newer set of messages. But the next message (af…

• Multiple Problems ith Thunderbird 115..3.1

  About problem #1 - I saw a message at the bottom of the window "Moved 47 messages from Inbox to Trash. Then I did a filter search for some messages, selected three, and deleted…

• Multiple Problems ith Thunderbird 115..3.1

  Wayne, density solved that problem, but it introduced another. Now each message occupies two lines: Sender Date Subject I want a…

• Firefox 111.0 freezes on start up

  The mail PID is (per ProcessExplorer) at xll.dll!XRE_GetBootstrap+0x9edde0 . The two subsidiary PIDs are waiting at firefox.exe!s.SandboxedProcess+0x1c30. Does anyone know what …

• Firefox 111.0 freezes on start up

  I use MS Defender. I have Webroot Secure Anywhere also. There have been a few times when WRSA has prevented me from accessing a bad malware site. But I did do the test with WRS…

• Firefox 111.0 freezes on start up

  I just shutdown Webroot, cancelled the primary FF process. and then restarted FF. The primary PID is still waiting at the same place, but the two subsidiary PIDs are now waiting …

• Firefox 111.0 freezes on start up

  I just updated to FF 111.0, and after the install FF sites with one window open and a spinning circle. The mail PID is (per ProcessExplorer) at xll.dll!XRE_GetBootstrap+0x9edde0 …

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  What is the status of bug 1779306? Is it in 102.3.0? I had an occurrence while running 102.3.0. I just upgraded to 102.3.1.

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  I had another occurrence this morning at 8:40. Attached is the Error Console screenshot, and I see two "Pop3ServerBusy" entries at the bottom. I do not see any timestamps, so I …

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  The offical bug report, if i read it correctly, says that this is fixed in 102.2.1 , which I installed 09/03 20:09. But I had another occurrence 09/07 15:36. I did not capture …

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  I had another "blockage" this morning; the last mail was 7:45, and it is now 9:50. I have attached the error console, which has an entry "> mailnews.pop3.468 Pop3Client.jsm …

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  A few minutes later I did another "Get Messages" and the Error Console has a new message: mailnews.pop3.443 Got an error name=pop3ServerBusy (5) Pop3Client.jsm:1272:18

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  I had another occurrence last night/this morning. The last piece of mail downloaded has a 9:12PM timestamp. I have a different error message in the error console: "Polling for …

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  Matt, thanks. Do I have to add anything to that bug report, or just follow it online?

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  At 6:35AM today (8/20) was the last mail I received; it is now 20:28. The last line in the error console is again. mailnews.pop3.443 Got an error name=pop3ServerBusy (9…

• Thunderbird Stops Auto-downloading Mail - "account ... is being processed. Please wait until processing is complete" pop3ServerBusy

  Yesterday (8/17) I had to Exit and restart TB for it to download mail. I took a minidump. Today (08/18) the last mail message was downloaded at 11:56 (the time is now 13:49). …

• How Do I log SMTP POP3 Send Traffic

  With what TB version did SMTP logging change? I set mailnews.smtp.loglevel to All (it was "warn"). And I see the SMTP dialog in the Debug tab in the Error Console. Thanks. I…

• Mail Folder Gets Corrupted with Thunderbird Daily

  It seems likely. Is there anything I can do to give more info for the developers? My case involves copying/moving messages from one folder to another; the cases in the bug repor…

• Mail Folder Gets Corrupted with Thunderbird Daily

  Sorry for the mis-formatting/posting. Here are items 19-end. 19) I again did grep -n "^From " Sent > \temp\sent-from-211205-1500 and compared it with the sent-fr…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I did some testing, and the results are in a .txt file. I cannot attach it, so I will include it in multiple replies. Thunderbird Sent Folder Corruption d:\computer\tb-sent-c…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I just ran another test. I copied six messages from a sent-211118 folder to my Sent folder. The first copied correctly, but the other five did NOT. The .msf file showed the dat…

• Mail Folder Gets Corrupted with Thunderbird Daily

  The mail file is in mbox format. In this format, each mail message begins with a line that begins with "From " starting in column 1. Any line that begins with those characters i…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I did see one item that might be related to my problem. I think that what I should do is to install the latest non-daily and test it so see if it has the problem. I no longer …

• Mail Folder Gets Corrupted with Thunderbird Daily

  Here is what I did : 1) Exit TB daily 2) Copy messages at the end of Sent to Sent-newmsgs (via grep -n and tail +n) 2) Rename Sent and Sent.msf 3) Copy sent-restorted to Sent …

• Mail Folder Gets Corrupted with Thunderbird Daily

  As I asked above - Which of the four folders in question do you think is/are corrupted?

• Mail Folder Gets Corrupted with Thunderbird Daily

  I want ONE file that has my sent e-mail messages. With what you suggest, I will have 1) a new Sent folder that will contain all messages I send from today onward 2…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I CANNOT delete the Sent file, as it contains mail that I have sent. The "problem" with this file is that messages I had sent between 03/13/2020 and 08/12/2021 are missing (and I…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I just checked, and Sent.msf has been rewritten to disk. So I copied one mail message from Sent-restored to Sent, and it copied fine. I copied 10 more messages from Sent-restore…

• Mail Folder Gets Corrupted with Thunderbird Daily

  I Exited TB, then renamed the Sent.msf file, then restarted TB Daily. TB said that it rebuilt the index, and the Sent folder looks OK. But the sent.msf file now has zero length.…

• Mail Folder Gets Corrupted with Thunderbird Daily

  If I shutdown TB, then move the Sent.msf file elsewhere (to archive it), and then restart TB, will this cause the Sent..msf file to be re-created? Is this what I have to do? …

• Mail Folder Gets Corrupted with Thunderbird Daily

  I do not understand your reply. First, the article you reference refers to compacting folders, and I am not compacting folders; TB may do it for me when it determines that a fold…

• Mail Folder Gets Corrupted with Thunderbird Daily

  What I meant by corrupted is this - a large number of messages mysteriously disappeared from some of my mail folders. The mail folders (and .msf files) were "intact"; I had no tr…

• Mail Folder Gets Corrupted with Thunderbird Daily

  My connection to the mail server is POP3. But what I am doing does NOT contact the mail server. I am copying mail messages from one mail folder in TB to another mail folder. As…

• The Debug pop3.log File Contains Non-printing Characters.

  I believe that the Unix utilities will work on a file that contains Unicode characters. If a file is mainly ASCII characters, then these utilities will treat the file as a text f…

• Breakpoint Exception 0x80000003

  Fred, as you might remember, I was ALWAYS running Firefox in safe mode when I was running Windows 7. In Windows 10, I have not seen the need to run in safe mode, and I have had f…

• Breakpoint Exception 0x80000003

  This was a one-time occurrence (so far in my Windows 10 lifetime). I assume that the problem was detected by Windows, not by Firefox. I just restarted Firefox in safe mode. Wha…

• Migrating a Thunderbord Profile from Windows 7 (32-bit) to Windows 10 (64-bit)

  I solved my problem. I had not updated the Profiles.ini file to add the copied profile name. Once I did that, I saw my copied profile as the default profile. I still do not und…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I had another occurrence yesterday (03/02) that was similar, but different. Here is what I did: I had another occurrence of Thunderbird UIDL error on 03/02/2020. The last p…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Norman, you are partially correct. From the trace I see that Thunderbirde is contacting the server periodically (in my case, every 10 minutes), but when it does, it never sends t…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I have looked at RFC 1939 and the some of the Thunderbird source code, but not in detail. From the UIDL trace log, the inbound mail server has this response to a UIDL command: …

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Here is a continuation of the steps I took after creating the pop3.200222-error.log file: --------------------------------------------------------------------- Extract the data …

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I saw a UIDL error in Thunderbird. The last message received had timestamp 02/21 06:07PM ==> 02/22 00:07 UTC. copy pop3.log pop3.200221.log grep "2020-02-22 00:" pop3.log > pop…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Matt, thanks for the information.

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I have the trace running, but the problem has not yet resurfaced. I will report what the trace log has when the problem recurs. I have a question about what MOZ_LOG=POP3…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  It is not hard. I did it. The two environmental variables are set, per the output of this command: D:\computer>set m MOZ_LOG=POP3:5,timestamp MOZ_LOG_FILE=C:\Users\BarryFin…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I still need correct info on how to get the needed logging. I had to reboot this morning, and I issued the two SET commands before starting Thunderbird. But I still have no log …

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Matt, I was under the [false] impression from your e-mail that the POP3 negotiation dialog would be in clear text. This morning I issued the two "SET" commands, and I started Thu…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Matt wrote above, "The error occurs becasue the setting for the account do not match the returned capabilities from the server. However the communications with the server are in p…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  There is one easy? way to see if Thunderbird has been corrupted. I have seven dumps of Thunderbird taken after a UIDL error. If someone can tell me the windbg commands I can use…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  There is one problem with looking at the RFCs and determining what is happening - the credentials connection between Thunderbird and the POP3 server is encrypted so the userid and…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  Finally, someone else agrees with me! I have not had time to look a the source to see where Thunderbird stores the login credentials. For each of my recent occurrences (09/06, 1…

• Why is Firefox not re-writing recovery.jsonlz4 file?

  jscher2000, I will use cntl-shift-j the next time the problem occurs. When the problem occurs, FF is running slowly and has other problems. And I will post info here after the n…

• Why is Firefox not re-writing recovery.jsonlz4 file?

  I am updating this because I need more information. The basic problem is that sometimes something happens within Firefox that causes Firefox not to write the recovery.jsonlz4 fil…

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  I still cannot accept your reply. If the problem is in the POP3 server, then I would not be able to download mail until the server is rebooted. I can not think of any other way …

• Getting this message - The POP3 mailserver(inbound.att.net) does not support UIDL or XTND XLST

  As a retired software professional who wrote his first computer program in 1966, I have to disagree with your response. You claim that the error is in the POP3 server, in my case…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  Another occurrence that requires answers to ,y two questions above. FF was running slowly, so I increased toolkit.asyncshutdown.crash_timeout from 90000 to 120000 to see if I …

• Why is Firefox not re-writing recovery.jsonlz4 file?

  I looked through the bug discussion thread for 1404105, and I could not tell if that bug has been fixed, and if so, in what release. And I still do not have answers to my questio…

• Why is Firefox not re-writing recovery.jsonlz4 file?

  "You may have corrupt sessionstore [v56] sessionstore.jsonlz4 file(s)." Why would a corrupt sessionstore.jsonlz4 file cause FF to have problems writing a new recovery.jsonlz4 f…

• Why is Firefox not re-writing recovery.jsonlz4 file?

  I had another occurrence today/yesterday. This morning I saw that the recovery.jsonlz4 file was dated 01:52PM yesterday. FF was running slowly and not responding. I opened a br…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  Another occurance. Crash ID bp-7a639669-4a7e-49ff-99fb-3cf780190710 At 13:35 I restarted FF to upgrade from 67.0.4 to 68.0 . At 13:40 firefox.exe was not running, but session…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  Look at the attached screenshot. I did a "Clear Offline Website Data" on 5/21, and I just did it again (by accident). From another closed thread, it was determined that these sa…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  I changed the value to 90000 a few days ago. Today at 14:05 Firefox was slow in responding to Thunderbird e-mail URLs, so I did an Exit in Firefox. Firefox terminated (no firefo…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  I made the change, and I will wait for the next time I have to restart Firefox. Thanks.

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  Is this max time limit a value that I can change? I would prefer Firefox to take a bit longer during termination rather than to crash and then me having to log and process the cr…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  Here is another reply, I have had two further occurrences: bp-4e59f369-af10-4f17-9e6c-c56ad0190625 bp-ebc51d2a-140c-47eb-be1f-63b210190620

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  I have had more occurrences of this problem. At each occurrence, I tell the crash reporter window to submit the report and restart Firefox. But when I went to "about:crashes" a …

• Clicking "File --> New Window" opens a new window with ALL the tabs in my main window.

  I have no idea how I set my incorrect "multiple pages" hone page. I remember that I tried to drag and drop onto the home page icon, and I remember that I had problems. It is not…

• Clicking "File --> New Window" opens a new window with ALL the tabs in my main window.

  It probably is Lavasoft Web Companion , which got installed when I installed some other software. I can see your point of someone with a few home pages that he/she wants starte…

• Clicking "File --> New Window" opens a new window with ALL the tabs in my main window.

  You were correct. Somehow my home page was set to all my MAIN window URLs, separated with vertical bars. I have noticed that some (as yet unknown) process is resetting my home…

• On Exit, Firefox crashes after writing sessionstore.jsonlz4

  When I look at this specific crash via "about:crashes" I see in the "Details" tab these line headings in grey: Signature UUID 2f37eee3-6633-419d-8975-0c2e80190524 …