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Can't download Yahoo Mail. "Sending of PW for user xxx did not succeed. Server error"

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I have 12 years of Yahoo downloaded on Thunderbird but haven't accessed it for 3 years because I had no space. Anyway, on a new installation on Win10 (+Peppermint 9) on a Dell Inspiron 15 I CANNOT get it to download or send mail with Pop. Saw the notice to allow Yahoo in it's Mail Settings to use LESS SECURE MAIL but there is no setting like that anymore. I use AVG Free, tried shutting off Mail shield and shutting it off completely, no change. Tried all alts to normal password authentication on incoming, no help. Tried AO2 on SMTP to send, no help. Whitelisted yahoo.com and login. yahoo.com in cookies, no help. Trying it in Windows since I only downloaded it from that before- to avoid screwing up the mail stores. Is there any difference from downloading it from Ubuntu or Windows to the same folders??

Get same message except in one case of AO2 Auth when I attempted Send:  "Sending of password for user xxx did not succeed. Server error- Please try again."

Can I also access old XP Outlook Express mail, or actually it was redone as Live.com mail stores??? Set it up, doesn't seem to read .eml, guess I should even ask about OE .dbx

I have 12 years of Yahoo downloaded on Thunderbird but haven't accessed it for 3 years because I had no space. Anyway, on a new installation on Win10 (+Peppermint 9) on a Dell Inspiron 15 I CANNOT get it to download or send mail with Pop. Saw the notice to allow Yahoo in it's Mail Settings to use LESS SECURE MAIL but there is no setting like that anymore. I use AVG Free, tried shutting off Mail shield and shutting it off completely, no change. Tried all alts to normal password authentication on incoming, no help. Tried AO2 on SMTP to send, no help. Whitelisted yahoo.com and login. yahoo.com in cookies, no help. Trying it in Windows since I only downloaded it from that before- to avoid screwing up the mail stores. Is there any difference from downloading it from Ubuntu or Windows to the same folders?? Get same message except in one case of AO2 Auth when I attempted Send: "Sending of password for user xxx did not succeed. Server error- Please try again." Can I also access old XP Outlook Express mail, or actually it was redone as Live.com mail stores??? Set it up, doesn't seem to read .eml, guess I should even ask about OE .dbx

Modified by mkham6

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Fabián Rodríguez 70 solutions 557 answers

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Please ask a separate question about Outlook Express, eml., etc.

You're right not to use your current profile to access your email again.

My advice would be to create a new profile and setup your email using the wizard when first starting Thunderbird. Be careful to choose options to keep the mail on the server if using POP. Once you get access to the email account again, making a local backup to local folders would be best. Keep in mind moving more than 200 emails at a time will most probably fail and end up in data loss/corruption/duplication.

Can you login via web interface at all ? If there are options for 2FA or other security features, that may also come into play here.

Please ask a separate question about Outlook Express, eml., etc. You're right not to use your current profile to access your email again. My advice would be to create a new profile and setup your email using the wizard when first starting Thunderbird. Be careful to choose options to keep the mail on the server if using POP. Once you get access to the email account again, making a local backup to local folders would be best. Keep in mind moving more than 200 emails at a time will most probably fail and end up in data loss/corruption/duplication. Can you login via web interface at all ? If there are options for 2FA or other security features, that may also come into play here.
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Toad-Hall
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If this is a new computer and you have just installed Thunderbird, then make sure Thunderbird is an allowed program in your Firewall. If you installed and are using another Anti-virus then it may also be controlling the Firewall.

Thunderbird cannot access internet if it is not allowed. So please check this first.

re :Saw the notice to allow Yahoo in it's Mail Settings to use LESS SECURE MAIL but there is no setting like that anymore.

Email clients eg: Thunderbird, Outlook are regarded as third party. Yahoo would prefer you to use their website, hence all this nonsense and jumping through hoops.

quote: If you try to use Yahoo Mail in an older email client that uses POP or IMAP, you might get a "Server password has changed" or an "Authentication failed" error message. This is because those email apps use outdated security protocols and we've disabled access to them by default now. This explains your issue.

Thunderbird is not outdated as it does offer OAuth2 for gmail and yahoo.

This means if you use POP or IMAP that does not use OAuth2 as connection security, then you must switch on the option to allow less secure apps. See link below. https://help.yahoo.com/kb/SLN27791.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAALNBAfyDK-YTtvRoHvZlzEbrH1zsorxwxBdvTnytis88_QgazC3wmXBNITztmm1xY41tx3nrPjXfoljgjG_t2Z7p_ItkGmd9P-sA8bsX72GoBldrilafeR8biwfPyjK6BvrWfSQ2HVrO9dfPlDp4JsGAVqdBar1uFxNFVQFpik96


Otherwise, choose to use IMAP. Create new existing mail account. Menu icon > New Messages > Exisiting Mail account. Enter name Enter email address Enter password - same one you use to access webmail select to remember password. clickon 'Continue' Thunderbird should auto try to get configuration settings for yahoo using imap and OAuth2. When created you will be prompted to logon to yahoo to check you really are you. Then a token is created and from then forward that token is used instead of the password when Thunderbird tries to connect to server.

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

Release notes for version 60 say: What's New: OAuth2 authentication for Yahoo and AOL https://www.thunderbird.net/en-US/thunderbird/60.0/releasenotes/

If this is a new computer and you have just installed Thunderbird, then make sure Thunderbird is an allowed program in your Firewall. If you installed and are using another Anti-virus then it may also be controlling the Firewall. Thunderbird cannot access internet if it is not allowed. So please check this first. re :''Saw the notice to allow Yahoo in it's Mail Settings to use LESS SECURE MAIL but there is no setting like that anymore. '' Email clients eg: Thunderbird, Outlook are regarded as third party. Yahoo would prefer you to use their website, hence all this nonsense and jumping through hoops. quote: ''If you try to use Yahoo Mail in an older email client that uses POP or IMAP, you might get a "Server password has changed" or an "Authentication failed" error message. This is because those email apps use outdated security protocols and we've disabled access to them by default now. '' This explains your issue. Thunderbird is not outdated as it does offer OAuth2 for gmail and yahoo. This means if you use POP or IMAP that does not use OAuth2 as connection security, then you must switch on the option to allow less secure apps. See link below. https://help.yahoo.com/kb/SLN27791.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAALNBAfyDK-YTtvRoHvZlzEbrH1zsorxwxBdvTnytis88_QgazC3wmXBNITztmm1xY41tx3nrPjXfoljgjG_t2Z7p_ItkGmd9P-sA8bsX72GoBldrilafeR8biwfPyjK6BvrWfSQ2HVrO9dfPlDp4JsGAVqdBar1uFxNFVQFpik96 Otherwise, choose to use IMAP. Create new existing mail account. Menu icon > New Messages > Exisiting Mail account. Enter name Enter email address Enter password - same one you use to access webmail select to remember password. clickon 'Continue' Thunderbird should auto try to get configuration settings for yahoo using imap and OAuth2. When created you will be prompted to logon to yahoo to check you really are you. Then a token is created and from then forward that token is used instead of the password when Thunderbird tries to connect to server. https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo Release notes for version 60 say: ''What's New: OAuth2 authentication for Yahoo and AOL'' https://www.thunderbird.net/en-US/thunderbird/60.0/releasenotes/
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Question owner

TOAD: Thanks. Jeez, MS will block a program and not mention it. God, I still hate them, Win10 is so stupid, laid out like children's blocks and they don't tell you what they are doing, or let you take control of it. I went through ALL the setting but the Security stuff is so stripped down- NOWHERE did it have a button for Firewall settings, or "Set authorized programs". OF COURSE it isn't authorized! Why wouldn't it ask with a pop-up?

I see that OAuth2 is only for sending mail (should that be set?), doesn't have any effect on receiving, I presume, in POP. But what should the PW setting be for receiving mail? SSL/TLS AUTHENTICATION: Normal, Encrypted, Kerebos, NTLM?? The old Profile was all done as POP so don't want to change it to IMAP, although I dearly want my SentMail- my queries are more important than inbox. And I'm trying to get it all on one file- got 57,000 to 2016. Nope, still doesn't work with TB authorized in FIREWALL (reboot needed?). I remember that "Turn on Allow apps that use less secure sign in", but now they seem to have deleted it. Where does TB hide the Password, which I entered and saved? I could either try it all from Peppermint or Ubuntu, or move everything to external and try to download from my old computer. BTW, switching back and forth from Unbuntu to WinXP using same mail stores, the mail displayed fine- but I only downloaded it from Windows.

FABIAN: Thanks, see last para. Oh, I don't know, downloaded 57,000 in maybe 2-3 stretches, that worked very well before (but actually purchased a Yahoo Pro account just to do that). I've got full access to account on their websites. Let's see if the firewall is the problem. No, still doesn't work. I've got all the Mail Stores backed up in a few places so I can afford to destroy it.

TOAD: Thanks. Jeez, MS will block a program and not mention it. God, I still hate them, Win10 is so stupid, laid out like children's blocks and they don't tell you what they are doing, or let you take control of it. I went through ALL the setting but the Security stuff is so stripped down- NOWHERE did it have a button for Firewall settings, or "Set authorized programs". OF COURSE it isn't authorized! Why wouldn't it ask with a pop-up? I see that OAuth2 is only for sending mail (should that be set?), doesn't have any effect on receiving, I presume, in POP. But what should the PW setting be for receiving mail? SSL/TLS AUTHENTICATION: Normal, Encrypted, Kerebos, NTLM?? The old Profile was all done as POP so don't want to change it to IMAP, although I dearly want my SentMail- my queries are more important than inbox. And I'm trying to get it all on one file- got 57,000 to 2016. Nope, still doesn't work with TB authorized in FIREWALL (reboot needed?). I remember that "Turn on Allow apps that use less secure sign in", but now they seem to have deleted it. Where does TB hide the Password, which I entered and saved? I could either try it all from Peppermint or Ubuntu, or move everything to external and try to download from my old computer. BTW, switching back and forth from Unbuntu to WinXP using same mail stores, the mail displayed fine- but I only downloaded it from Windows. FABIAN: Thanks, see last para. Oh, I don't know, downloaded 57,000 in maybe 2-3 stretches, that worked very well before (but actually purchased a Yahoo Pro account just to do that). I've got full access to account on their websites. Let's see if the firewall is the problem. No, still doesn't work. I've got all the Mail Stores backed up in a few places so I can afford to destroy it.

Modified by mkham6

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Toad-Hall
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How to locate Windows 10 Firewall

In search type 'Firewall' click on 'Windows Defender Firewall' in Control Panel select 'Allow an app or feature through Windows Defender Firewall'


If passwords are selected to be remembered, then they are stored here: 'Menu icon' > 'Options' > 'Security' > 'Passwords' tab click on 'Saved Passwords' click on 'Show Passwords'

Note: 'Options' can also be located under 'Tools' on the 'Menu Bar' toolbar.


re :I have 12 years of Yahoo downloaded on Thunderbird but haven't accessed it for 3 years because I had no space. You mention you have not accessed the account for 3 years. Has the account been suspended? Are you able to logon to the yahoo webmail account via a browser ? You need to be able to get access to the webmail account. Please confirm you have access and can send/receive emails via the webmail account.

How to locate Windows 10 Firewall In search type 'Firewall' click on 'Windows Defender Firewall' in Control Panel select 'Allow an app or feature through Windows Defender Firewall' If passwords are selected to be remembered, then they are stored here: 'Menu icon' > 'Options' > 'Security' > 'Passwords' tab click on 'Saved Passwords' click on 'Show Passwords' Note: 'Options' can also be located under 'Tools' on the 'Menu Bar' toolbar. re :''I have 12 years of Yahoo downloaded on Thunderbird but haven't accessed it for 3 years because I had no space.'' You mention you have not accessed the account for 3 years. Has the account been suspended? Are you able to logon to the yahoo webmail account via a browser ? You need to be able to get access to the webmail account. Please confirm you have access and can send/receive emails via the webmail account.
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Toad-Hall
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Pop setting as per website: https://help.yahoo.com/kb/SLN3217.html

Incoming: Server name - pop.mail.yahoo.com Port - 995 Connection Security: SSL/TLS Authentication Method: Password Username = full email address

Outgoing Mail (SMTP) Server Server name - smtp.mail.yahoo.com IF: Port - 465 Connection Security: SSL/TLS IF: Port - 587 Connection Security: STARTTLS

Authentication Method: Password Username = full email address

Pop setting as per website: https://help.yahoo.com/kb/SLN3217.html Incoming: Server name - pop.mail.yahoo.com Port - 995 Connection Security: SSL/TLS Authentication Method: Password Username = full email address Outgoing Mail (SMTP) Server Server name - smtp.mail.yahoo.com IF: Port - 465 Connection Security: SSL/TLS IF: Port - 587 Connection Security: STARTTLS Authentication Method: Password Username = full email address
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Toad-Hall
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re :The old Profile was all done as POP so don't want to change it to IMAP, although I dearly want my SentMail

Please clarify: Do you mean you want access to the old pop account so you can see old 'Sent' emails? If yes, then you could import the 'Sent' mbox file into 'Local Folders' mail account.

In Thunderbird Download and install the addon called 'ImportExportTools' https://addons.thunderbird.net/en-us/thunderbird/addon/importexporttools/

How to install addon: https://support.mozilla.org/en-US/kb/installing-addon-thunderbird

Right click on 'Local Folders' mail account folder and select 'ImportExportTools' > 'Import mbox file' 'files mbox import' window opens. 'Select 'Import directly one or more mbox files' click on 'OK

Locate : C:\Users\User Name\AppData\Roaming\Thunderbird\Profiles\xxxxxxxx.default\Mail\'pop yahoo mail account' folder select the 'Sent' mbox file (it has no extension - not the 'Sent.msf' file) click on 'Open'

The file should get imported into your 'Local Folders' mail account.

re :''The old Profile was all done as POP so don't want to change it to IMAP, although I dearly want my SentMail'' Please clarify: Do you mean you want access to the old pop account so you can see old 'Sent' emails? If yes, then you could import the 'Sent' mbox file into 'Local Folders' mail account. In Thunderbird Download and install the addon called 'ImportExportTools' https://addons.thunderbird.net/en-us/thunderbird/addon/importexporttools/ How to install addon: https://support.mozilla.org/en-US/kb/installing-addon-thunderbird Right click on 'Local Folders' mail account folder and select 'ImportExportTools' > 'Import mbox file' 'files mbox import' window opens. 'Select 'Import directly one or more mbox files' click on 'OK Locate : C:\Users\User Name\AppData\Roaming\Thunderbird\Profiles\xxxxxxxx.default\Mail\'pop yahoo mail account' folder select the 'Sent' mbox file (it has no extension - not the 'Sent.msf' file) click on 'Open' The file should get imported into your 'Local Folders' mail account.
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Question owner

OK. I am getting pretty sick of this. Yahoo support pages are useless, sometimes years out of date. FIRST, can anyone who is DOING IT on a free account say, Does Yahoo now let you download mail??? I did it before by paying for a Yahoo Plus account a few years ago (which lasted years after paid account closed), also was able to download it on another account by trick of changing account to Yahoo Asia. Didn't try the latest changes on Win10. I've accessed it a million times online and from mail stores, but haven't downloaded it for 3 years.

I tried it now on a clean new IMAP installation in  Peppermint9 (Ubuntu 18.4) and it just doesn't work. This time did it with the wizard and for the first time it FOUND SETTINGS, but I want the Mail on my computer for when offline or searching or hackers trash Yahoo, so I changed it from IMAP to POP. I see now that browser popup is an second authorization window, I thought it was a mistake (since you know the settings and password) and you are also logging in twice so I kept closing it!!  Popped up again in IMAP, but not POP. Can one force it to open Authorization popup? It created the folders, but now says "connection refused" after 3-4 minutes. [What is command to STOP trying?] Have no idea where the password is hidden (Linux) to double check it.  It only showed OAuth2 on SMTP, after I set that, it showed the ability to do it on incoming too. THAT is the correct setting for Yahoo? In old days, after any change, you had to reboot TB for changes to be incorporated... is that still true?  I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? Tried doing that (Ext4) with the wizard, but still getting same "server error".
OK. I am getting pretty sick of this. Yahoo support pages are useless, sometimes years out of date. FIRST, can anyone who is DOING IT on a ''free account'' say, '''Does Yahoo now let you download mail???''' I did it before by paying for a Yahoo Plus account a few years ago (which lasted years after paid account closed), also was able to download it on another account by trick of changing account to Yahoo Asia. Didn't try the latest changes on Win10. I've accessed it a million times online and from mail stores, but haven't downloaded it for 3 years. I tried it now on a clean new IMAP installation in Peppermint9 (Ubuntu 18.4) and it just doesn't work. This time did it with the wizard and for the first time it FOUND SETTINGS, but I want the Mail on my computer for when offline or searching or hackers trash Yahoo, so I changed it from IMAP to POP. I see now that browser popup is an second authorization window, I thought it was a mistake (since you know the settings and password) and you are also logging in twice so I kept closing it!! Popped up again in IMAP, but not POP. Can one force it to open Authorization popup? It created the folders, but now says "connection refused" after 3-4 minutes. [What is command to STOP trying?] Have no idea where the password is hidden (Linux) to double check it. It only showed OAuth2 on SMTP, after I set that, it showed the ability to do it on incoming too. THAT is the correct setting for Yahoo? In old days, after any change, you had to reboot TB for changes to be incorporated... is that still true? I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? Tried doing that (Ext4) with the wizard, but still getting same "server error".

Modified by mkham6

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Toad-Hall
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You left a space at the beginning of the last section and so it posted it in one long line making it difficult to read, so I've copied it below for anyone reading it. Quoted: I tried it now on a clean new IMAP installation in Peppermint9 (Ubuntu 18.4) and it just doesn't work. This time did it with the wizard and for the first time it FOUND SETTINGS, but I want the Mail on my computer for when offline or searching or hackers trash Yahoo, so I changed it from IMAP to POP. I see now that browser popup is an second authorization window, I thought it was a mistake (since you know the settings and password) and you are also logging in twice so I kept closing it!! Popped up again in IMAP, but not POP. Can one force it to open Authorization popup? It created the folders, but now says "connection refused" after 3-4 minutes. [What is command to STOP trying?] Have no idea where the password is hidden (Linux) to double check it. It only showed OAuth2 on SMTP, after I set that, it showed the ability to do it on incoming too. THAT is the correct setting for Yahoo? In old days, after any change, you had to reboot TB for changes to be incorporated... is that still true? I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? Tried doing that (Ext4) with the wizard, but still getting same "server error".


Pop will only be available if you have set up to use less secure apps OR selected to use two step verification. If 2 step verification, then you have to get and use an application specific password instead of normal password when creating the mail account. https://help.yahoo.com/kb/SLN5013.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAAAPj853fzjm9oFkdGzrl128NsEEPRAZ9PHY5TGXJ_2f8RIPn95zA7wLiqJ5-MF_TZ_dVxAI7i0OMftf46fsQ5B_0jJJV0EDEhVuBEnvS346afpde2vhp4dc__XOcHtRfzI8wfUn-E3pZYW8n66ErGVb3Oa7waXV4nKKWNewjSFp3


When creating an imap account, Thunderbird wizard will auto select imap set up configuration. Imap will use OAuth2 for incoming and outgoing and will open browser to request confirmation in order to put a token in your saved passwords, it will use that token from then onwards to connect to server. Imap can be set up to download full copies of emails for offline use. https://support.mozilla.org/en-US/kb/imap-synchronization

re : I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? The 'Mail' folder -(pop and Local folders accounts use the 'Mail' folder) Imap accounts use the 'ImapMail' folder.

Do not move the 'Mail' or 'ImapMail' folder, it must remain inside the 'profile name' folder. If really necessary, Move the 'profile name' folder to a suitable location and then use 'Profile Manager' to point to that location. Then the 'profiles.ini' file will get correctly updated. But make sure all accounts are up and running correctly first. http://kb.mozillazine.org/Moving_your_profile_folder

You left a space at the beginning of the last section and so it posted it in one long line making it difficult to read, so I've copied it below for anyone reading it. Quoted: ''I tried it now on a clean new IMAP installation in Peppermint9 (Ubuntu 18.4) and it just doesn't work. This time did it with the wizard and for the first time it FOUND SETTINGS, but I want the Mail on my computer for when offline or searching or hackers trash Yahoo, so I changed it from IMAP to POP. I see now that browser popup is an second authorization window, I thought it was a mistake (since you know the settings and password) and you are also logging in twice so I kept closing it!! Popped up again in IMAP, but not POP. Can one force it to open Authorization popup? It created the folders, but now says "connection refused" after 3-4 minutes. [What is command to STOP trying?] Have no idea where the password is hidden (Linux) to double check it. It only showed OAuth2 on SMTP, after I set that, it showed the ability to do it on incoming too. THAT is the correct setting for Yahoo? In old days, after any change, you had to reboot TB for changes to be incorporated... is that still true? I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? Tried doing that (Ext4) with the wizard, but still getting same "server error".'' Pop will only be available if you have set up to use less secure apps OR selected to use two step verification. If 2 step verification, then you have to get and use an application specific password instead of normal password when creating the mail account. https://help.yahoo.com/kb/SLN5013.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAAAPj853fzjm9oFkdGzrl128NsEEPRAZ9PHY5TGXJ_2f8RIPn95zA7wLiqJ5-MF_TZ_dVxAI7i0OMftf46fsQ5B_0jJJV0EDEhVuBEnvS346afpde2vhp4dc__XOcHtRfzI8wfUn-E3pZYW8n66ErGVb3Oa7waXV4nKKWNewjSFp3 When creating an imap account, Thunderbird wizard will auto select imap set up configuration. Imap will use OAuth2 for incoming and outgoing and will open browser to request confirmation in order to put a token in your saved passwords, it will use that token from then onwards to connect to server. Imap can be set up to download full copies of emails for offline use. https://support.mozilla.org/en-US/kb/imap-synchronization re : ''I first did put the MAIL folder on the same NTFS partition with the other Mail, or should I put it on an Ext4 partition? '' The 'Mail' folder -(pop and Local folders accounts use the 'Mail' folder) Imap accounts use the 'ImapMail' folder. Do not move the 'Mail' or 'ImapMail' folder, it must remain inside the 'profile name' folder. If really necessary, Move the 'profile name' folder to a suitable location and then use 'Profile Manager' to point to that location. Then the 'profiles.ini' file will get correctly updated. But make sure all accounts are up and running correctly first. http://kb.mozillazine.org/Moving_your_profile_folder

Modified by Toad-Hall

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