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Win 10. Multiple email accounts, some gmail plus others. I had TB 115 something (it's uninstalled so not available to see). I run Firefox without issues. TB went completely haywire, all email accounts disappeared, nothing worked (second time this year) but recovering was proving too difficult and I'd already spent a whole day on it. I decided to uninstall and install a fresh copy. First I copied the single profile to an external drive. Then I uninstalled TB. Then I ran Ccleaner to tidy up the remaining TB cache and other remnants, also cleaned the registry. I downloaded a new copy from Mozilla's site, ran the install file, The install dialog box offers the same install location as the previous location, same user. Upon clicking install, the dialog box disappears and nothing happens. I've tried this more than ten times now, including fresh downloads from Mozilla. The dialog box offers an alternative user as Administrator but that won't work because I don't actually have the administrator account set up with a password, and TB demands the password. I do not want to open a new user account just for TB. Any suggestions for working round this will be gratefully received.

Hello, I installed Thunderbird using POP3 to download all emails from my Zoho Mail server to store them in my PC but although all emails appear now to be in the inbox, there are no subfolders, emails are grouped according to subject titles and I cannot seem to find the latest email on the list. What can I do to display them chronologically by date and restore subfolders and archives? Upon lauching, this is what I get. Thank you

Got a new computer. Loaded Thunderbird and set up. Received a few emails. Then realized need to move Profile from old computer. Forwarded the few emails I got to another rarely used email account. Thought uninstalled (?) Thunderbird from new computer. Transferred Profile and ini to new computer. Thunderbird started on its own (?) but with about a month older version of my local files, and older emails. Mozilla Thunderbird did not appear in Windows start directory. Loaded Thunderbird again on new computer, and got back in the Windows start directory. Eventually got all my old emails were sent to me automatically in the (correct) Inbox, and I retrieved the few emails I forwarded to my other rarely used email account. Long story short, I got everything straightened out, but with one big exception. A second Inbox, the one that now receives my email, is now in my Drafts folder. How do I get my correct Inbox to receive my mail instead of the second Inbox in the Drafts folder? Thank you in advance to whomever has the expertise to straighten this out.

On Mac OS 14.4 Firefox hangs on launch and crashes, requiring "Force Quit" when I try to Refresh or Troubleshoot. Uninstalled and reinstalled multiple times, and restarted computer several times. Have spent several hours trying multiple community suggestions to now avail.

I am not a programmer, but am able to follow instructions. I clearly need someone to hold my hand and walk me through the solution. (I even checked out the Kaspersky suggestion, but cannot install it because Firefox cannot connect to the Internet.)

I have downloaded and saved "Raw Data.docx" and "Application Basics tex.docx" from one of the crash reports.

P.S. On this question form Firefox guessed that my operation system was Mac OS x 10_15_7, but it is 14.4

Julian

I was advised to use the Authenticator.cc extension for my Firefox browser on Windows 10 PC, I can't get it to run. It downloads but will not then do anything. I can't get the icon into the menu bar, I can't scan a QR code, it just will not perform. Why not?

I've used thunderbird for a few years, but I think a recent change in outlook.com has messed things up.

My account is detected to use oath2 for authorization, but when I click "done", it tries for a while and then say "unable to log into serve".

What I expect is that it would bring up a web browser or something so I could do the oath dance to enter my credentials, but that doesn't happen.

I uninstalled then reinstalled Firefox. I was able to recover my bookmarks, add-ons, and login information. But I do not know how to recover by pdf files. Are they gone for good?

Hello, my Cox email account was migrated to Yahoo mail. I can receive emails but now I can't send emails from Thunderbird. I've triple checked server settings. Please help. Thanks-Vince

This is the message I get and it does this with all email addresses.

Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again.

I am running 115.11.0 on Ubuntu 22.04

I changed email SMTP servers, incoming and outgoing. First I migrated IMAP on the cloud between old host and new host. I connected Thunderbird using existing a profile, just changed server information. After that email started coming into Thunderbird. I discovered a bunch of the filters had been disabled with no destination folder. Not all of them. Just maybe half. It knew the destination folder for the filter because it was at top of window when I would look at filter rule. I had to use that as guide as to what destination folder it should go to, and it filters fine.

Why were all these filters cleared of destination folder?

I'm having problems with the Cardbook add-on but it is up to date based on my version of TB. When I go into Preferences->Advanced-> Update 'Check for Updates' shows I'm up to date. However, when I check archived versions it looks like the last version that worked with a MAC release of less than 10.12 is 78.14.0.

I'm confused if I can upgrade to 78.14 and how I would do it?

Thanks for any advice

P.S. and yes, it's a very old Macbook from 2009.

As title- Cannot download for example webm format, but jpg is okay. cannot install any addon, theme or anything. DRM didnt install as well. i was trying reinstall, refreshing browser, rebooting.

Hi guys.

Need some help. I can't download any files using Firefox. It always says, "Failed".

I tried other browsers, and I'm able to download just fine.

I already tried this guide, https://support.mozilla.org/en-US/kb/cant-download-or-save-files, but still same.

I haven't tried to re-install Firefox because I have a bunch of workbook marks that might get lost. So, I want the re-install option as a last resort.

Thanks~

Hi there,

On the 23. of Mai I first noticed that I am unable to download any files whatsoever. I tried downloading .exe files and also a .csv file. When I try to download one of these files it appears in the downloads window but immediately goes to the status "Failed". Any retry fails as well.

The same thing goes for extensions. I cannot download any extensions or plugins using my Firefox browser. Since I reinstalled Firefox I can now also not use Plex because Firefox can't install the required plugins.

I will attach screenshots of all the errors I get.

All of the above worked when I tried it on the Edge browser.

Firefox version: 126.0 Windows 11

Things I have tried to fix the issue:

• Use the network connection from my phone instead of my home network
• Disable firewall and windows defender
• Reinstall Firefox
• Refresh Firefox
• Downgrade to version 125.0.1 and 122.0
• Reset router to factory settings
• Flush dns
• Restart PC
• Manually delete profile folder
• Delete temp files
• Change download destination
• Disable "Block dangerous and deceptive content"
• Troubleshoot Mode

Is Firefox using some other temporary folder for downloads?

Any ideas on how to fix this issue would be appreciated.

Thank you.

No idea what the cause is but I cannot download ANYTHING on my browser for some reason. Pictures, documents, executables, browser extensions. Tried downloading documents from email attachment.. fail Tried downloading VLC... fail Tried every default recommended solution, clean install, you name it. Mind you all of these files downloaded just fine perfectly via Microsoft Edge.

Noticed another abnormality. Changed the download folder to a custom one. Download failed and DELETED the folder for some reason.

I usually download and install manually the custom install of Firefox on Windows.

Recently, a new version was automatically installed without my permission and destroyed all my customization. THIS IS UNACCEPTABLE. I had to restore the older version from backup and I was going to stop updating.

But I see that the manual custom installation is still available for download.

I want to make sure that if I use it it will not wipe out my customization again.

Please confirm.

While following this step in order to reduce CPU and memory consumption of firefox [content-prefs.sqlite file], I accidently deleted the Profile folder itself.

After this firefox wasn't opening and was stuck on not responding in activity monitor.

I reinstalled firefox, multiple times even after a shutdown, removing any old files in the Library folder. Still it's stuck on the same issue, firefox doesn't opens up even once.

I am in the process of migrating to a new Windows 11 PC. I am a long-time user of Firefox and have version 126.0 - 64 bit on my old PC. On my new PC I apparently downloaded it from the Microsoft Store during all my software installs. That version shows as "Windows MSIX Package Mozilla – MSIX – 1.0”

Are there differences between the 2 versions and should I do anything such as reinstalling from Mozilla?

Thanks, BillT