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Thanks for having me . I am struggling with backing up my TB on my laptop. When i set it up i was told that the way i set it up it would need backing up regularly as it is based on my computer hard drive. I followed a youtube guide to back up but i keep getting this message: "this action cannot be completed because the file is open in thunderbird- close file and try again parent.lock "

and cannot get passed it.

Any guidance would be gratefully received. ( or another method of backing up that a simple person could follow) TIA Cheers

Hello there. I've followed the instructions in the appropriate support article and transferred our Thunderbird profile from a Widows 10 machine to a Windows 11. My profile as a .zip file is larger than the 2GB limit, so I used the Widows Explorer cut and paste. It's likely that I've done something slightly awry as one of my local sub folders hasn't transferred. Otherwise TB works fine. Is it possible to just restore the particular local folder, as I can find both the entries in my mail folder on windows explorer? However the view of the two entries looks rather different on the two computers when I compare a local folder that has transferred. Regards, Arthur

On the latest update to firefox, the browser now has a vetical tab in addition to the horizontal ones. I want to remove the vertical tabs, and ideally for it to never come back. I've searched the settings as well as the support features and can't find a way to turn it off. I am legitimately not going to use firefox at all until this issue is resolved.

Thanks

I think started some time this year, I can't find a Firefox download that installs without admin rights from official website. The .exe and .msi options all require admin privileges.

1. Is there still a no-admin-rights version available? 2. If not, why was it removed? 3. Any plans to bring it back?

Been using TB for about 10 years. My last upgrade was to ver 52.9.0. in 2018. Since, I have clicked the upgrade button a few times. I do not know what ver I was running before my accidental upgrade to 115.16.2 a couple days ago. This ver is terrible. I want to go back to my previous ver, but not sure what it was.

So a month ago I did a win 10 backup to my external drive. Not sure how to just restore TB on win 10 backup. Also, I weekly copy my profile to a thumb drive.

1. Where is that ver number located in the copied profile so I know what ver I was running? And if I find it can I just uninstall TB and all files/profile and reinstall that version; then import my copied profile without losing 10 years of mail?

I know that typically mozilla does not put a low bound on advisories, and https://www.mozilla.org/en-US/security/advisories/mfsa2024-40/ is the advisory for vulnerabilities fixed in ESR 128.2. CVE-2024-8387 is listed here. yet the advisory for 115, https://www.mozilla.org/en-US/security/advisories/mfsa2024-41/ does not list this vulnerability. Was this something that was only impacting 128 (for the ESR builds) or is there a mistake that either 115.15 did patch it but it wasn't documented, or the patch has been missed and ESR 115 is still vulnerable?

It seems from reading on forums and googling that there is a "return receipt" function in Thunderbird. My problem is I can't find it anywhere in my software. I've searched in every category and can't even find an "Options" on the menu. I remember when Thunderbird did have a "return receipt" that was very easy to find. Now it seems that it has disappeared altogether. What gives?

Hello,

I've tried running "firefox -P". I've also tried deleting ~/.mozilla. No matter what I do, I still keep getting this message.

OS: Linux 6.10.13-3-MANJARO Firefox versions: firefox 131.0.3-1 installed from the Arch repo via pacman; also firefox-132.0.2 installed from tarball downloaded from firefox.com and unpacked as /opt/firefox.

With firefox 131.0.3-1, I get the following error message:

[Parent 33389, IPC I/O Parent] WARNING: process 33445 exited on signal 9: file /usr/src/debug/firefox/firefox-131.0.3/ipc/chromium/src/base/process_util_posix.cc:335

With firefox-132.0.2, no messages are printed.

What is even more confounding: I have 2 user accounts on this computer. When I login as myself, I get this popup. When I login as the other user, firefox opens up fine.

I've already looked at the following, but that has not helped. https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible https://support.mozilla.org/en-US/questions/1327628 https://support.mozilla.org/en-US/questions/1396772 https://support.mozilla.org/en-US/questions/1454745

I'd be most grateful if someone could please suggest any other alternatives to try. Thanks!

Trying to install TB from download. I get the following error message: Access Denied You don't have permission to access "http://login.xfinity.com/login" on this server.

But, when I login to xfinity through my browser, I can access the mail just fine. What should I do? Thanks for your help. Jerry

For the past 3 days, I've been locked out of using Thunderbird email. When I try to open it, I get a "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to restart now ?" "Yes/No" option pop-up.

This is infuriating. After several hours, I'm still no closer to being able to use Thunderbird again.

If I choose to restart, nothing changes and I just get the doom loop pop-up again.

If I install uninstall (via Windows Control Panel), again I get stuck with the "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to restart now ?" message.

I can find no useful advice in the Thunderbird help and forums. It's recorded as a known issue. But no viable solutions found.

Using Windows 10. Looks like Thunderbird tried to update to 115.16.2 on 28-Oct-24 (not something I requested).

Please let me know how I can fix it.

And do something to fix this bug (which is a shocker).

Hi, I'm having issues moving a 10 year old Thunderbird installation on a Windows 10 Pro computer to a new Windows 11 Pro PC.

I looked at all the guides & prior support messages and followed the instructions carefully. My old Windows 10 installation was in a custom directory (G:/Program Data/Thunderbird). I ensured it was updated to the most current version and closed it before moving files. I installed Thunderbird on the Windows 11 machine, went to Troubleshooting Info and found the folder that it used for the profile (when I go to profile editor, there are 2 profiles listed in the new build - I verified that I was in the directory for the default profile). I then closed Thunderbird on the new PC.

The two computers are on the same network so I moved all the files from the old location to the new location via just drag and drop. Of note, I couldn't "go up 3 levels" on the original machine's directory as per the instructions because, well, there weren't 3 higher levels of directories - I just moved the Thunderbird to Thunderbird on the new PC.

When I open Thunderbird on the new PC, it still acts like it's a new installation, except I do have my Address book. I tried deleting the second profile it had created; no different. I tried creating a new profile and specifying a directory somewhere else (eg. C:\Program Data\Thunderbird) and moving the files there - no different. I tried copying (presumably inactive) Thunderbird folders from the old computer C:\Users\~\Roaming and \Local over to a similar location on the new PC - nothing changed.

Anybody have any other ideas of what I'm doing wrong? Thank you!

I'm trying to transfer the Profile folder from my current laptop to my new one. I followed the directions here: https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer but must've made a mistake because none of my many Local folders have populated Thunderbird in the new laptop. Also, the GB size, number of files and number of folders show to be very different on the new laptop vs. the current one.

I'm inclined to just start over but have a question. Can I simply delete the contents of the "Thunderbird" folder under "Roaming" in my new laptop and try again to paste into it? Or are there some items in that folder that were inserted when I first downloaded TB into my new laptop so that doing a complete deletion would remove those and they wouldn't be replaced when I try pasting again? If so, how do I get around that?

Thanks very much for your help.

About a month ago I began the process of upgrading from W10 to W11. In the process, several problems happened. One of the problems was with Firefox. After reading and trying many suggestions from the Mozilla site, as well as several other sites, and having no success, I posted my problem on this Mozilla support site and hope that there was someone who could help. There was. After several days of exchanging messages (suggestions, instructions and results - mostly about Profile), Firefox returned.

The other major problem is Thunderbird. I have downloaded a current version (128.5.2esr). I have run it twice and, each time, email was downloaded. So that part seems to be working. What doesn’t appear are the settings I have used and message folders I have created over several years. I suspect that the problems are Profile related.

Starting from Help in the Thunderbird menu, then Troubleshooting Information, then Application Basics, I see Profile Folder. On that line is a button labeled Open Folder followed by (Local Drive). I click Open Folder and File Explorer opens to a folder named ab3xaztm.default-esr. It shows that the folder contains 59 items, including 10 subfolders. All files and folders show a December date.

Following the path C:\Users\rsuth\AppData\Roaming\Thunderbird\Profiles\, in addition to ab3x…, there is another folder nlys3gkl.default that contains only 1 file, times.json.

Because of my earlier struggle – and eventual win – with the Firefox problem, I think that the Thunderbird problem might also be fixed in a similar way: Profile.

Slightly before the upgrading from W10 to W11, I made a copy of my Thunderbird folder. I think if I replace the currently active Thunderbird folder with the one I have saved, my Thunderbird problem may be over. However, I’m not certain that will happen and I’m not certain about the specific steps to take to make the replacement. (With my Firefox issue, there were a couple of small important steps I had to take to make it work, and those steps were explained to me by the person who helped me with my Firefox problem. So, after all these words, can someone point me in the direction to solve my Thunderbird problem?

Thanks for reading.

Latest update, 4. oct. Using Firefox Developer Edition. Closed the browser window for the day, and then on opening again it had updated, my entire toolbar, and also icons where the tabs are, are just gone - including the "+" icon for creating a new tab, along with the bookmarks bar having vanished. Picture added below.

It seems like the bookmarks bar is still there, you just can visibly see any bookmarks. Tried adding a new bookmark, but nothing appeared.

How can I fix this?

Long time thunderbird user but kinda at my wits end. I'm moving to a new laptop and I have noted that the export function does not like profiles larger than 2Gb. Mine is approx 10.5Gb. I followed what seems to be the suggested protocol

- install on new machine, don't create any account, close thunderbird - erase the profile folder and the profile.ini in the new install (I guess this is optional really) - close thunderbird on old machine - copy the protocol and .ini files from old machine to the new one. (there is only 1 file: 1rrz6vdm.default which

     seems odd maybe?) 

- crank up the new thunderbird

Well, I get something, but basically it is a pale ghost of what is there in my old machine. Have tried dozens of variants on this process with no love.

Help? Thanks

How can I get the download for version 78 for Firefox? My Mac is on 10.11.6 and my Firefox won’t open bc the newer version isn’t supported. I need the old version and can’t seem to find a way to download it. Please help!

When I exported my Address Books from Thunderbird on my Windows 10 (64 bit) computer it saved them as a Home.ics file but there is no option to Import and .ics file on Thunderbird 128.4.2esr (64 bit) on my new Windows 11 computer. How do I Import my Address Books with an .ics file?

I have loved FF desktop browser since I started using it per my boss in 2003. But I am so tired of the fact that EVERY SINGLE TIME you put out an update it breaks my access to the bank. EVERY SINGLE TIME. I waste HOURS reading articles, calling the bank IT dept, chatting with people who are on 3 calls at once, only to hear them tell me to "just use chrome." I clear the cookies, clear the cache, reboot, follow all the prompts in the settings and THEN the damned bank server doesn't recognize the device so it forces yet ANOTHER password change. It happened again TODAY and it makes me so sad but I cannot do it anymore. I am STILL now (going on 4 hours) trying to access the billpay page @ Xantanderbank. (ahem, secure codename) I am forced now, by this craziness, to use the imbecilic duckduckgo which is A) and offensive name and b) you KNOW it nowhere near the product you have built but I CANNOT DO THIS ANYMORE. Thank you for the time it takes to read this diatribe. I appreciate it.