All Products Community Forum

I have moved my Thunderbird data from drive C:\xxx\Thunderbird to N:\xxx\Thunderbird. The Thunderbird program remains on "C:\Program Files\Mozilla Thunderbird" How do I tell Thunderbird to find its data on the N: drive?

     Thank you,    Art Lieberman

Unable to open NEW Email on one click. i need to wait for 4-5 mins to open that email. even i am not able to open on one click which contains Barcode. which email contain barcode its also not reflecting in email and even i need to wait for 4-5 mins to open that email.

Kindly help me for this matter i need to change any settings.

Firefox is my Standard Browser and worked fine until today. Now I'm forced to choose between Chrome and Samsung when I User a link from an Email. The link doesn' t work until I change my standard to einher one of them. Hier can I set Firefox as a standard to open links? In the settings Firefox ist the standard browser.

I've pretty much exhausted my simple little mind about this problem. At some point around the beginning of the year, Firefox changed the fonts on all my toolbars to some ridiculously miniscule font. I've queried Google's AI several times, tried every solution I've received, all to no avail. Is there a way to do this? I just want to enlarge the font in all the toolbars, not the web site contents, and lock it in. Thanks to whoever can help me achieve this.

I'm running FF v147.2.1 on my iPhone. There is NO translation option in the address bar OR in settings. It was supposed to be introduced in v146. Why is it not available despite having a version that is supposed to have the feature?

VPN has appeared at the top of the screen with an option to click the GET STARTED button to try the built in option. I haven't done so but now can't access a website I regularly use. Their tech team tell me that the VPN is blocking access. How do I disable this when I haven't asked for it so don't know where to find it

06 May 2026 USA Just to inform users:

All mailboxes and all mail in profile are catastrophically and irretrievably deleted when I: 1. Change the location of the profile folder. 2. Make appropriate change in profiles.ini reflecting the location change. 3. Launch Thunderbird in Offline Mode (launching in OFFLINE mode is the fatal event). 4. Mailboxes will appear during this one launched session

    but

5. If Thunderbird is closed while still OFFLINE, then a re-launch of Thunderbird in any state will reveal

     that all mailboxes and all mail have been deleted.

All mailboxes, and of course, all mail in the profile are catastrophically and irretrievably deleted. I was lucky that I made a backup before changing profile location.

The deletion of mail and mailboxes occur at the close of Thunderbird's OFFLINE state. An examination of the profile folder indicates the destruction has occurred upon closing of Thunderbird in OFFLINE state.

It is not the re-launch of Thunderbird that causes the catastrophic deletion. The deletion occurred when Thunderbird was closed in its OFFLINE state.

To successfully change the profile location I must: 1. Make the change to profile location. 2. Make the appropriate change to profiles.ini 3. BE SURE to make the FIRST LAUNCH of Thunderbird in ONLINE mode--ONLINE only. 4. Once 1,2,3 are done, then Thunderbird does not corrupt the profile folder.

Conditions that MIGHT make my configuration uniquely affected: 1. I use Proton Mail Bridge in conjunction with Thunderbird. 2. My Profile folder is on a network share that is letter-mapped in Windows. 3. I have about 10 email addresses in Thunderbird that are Outlook IMAP, Gmail IMAP, and of course, Proton Mail.

I've been using Thunderbird a couple of years in this configuration with no problems. I just decided to rename my profile. So, this is my first discovery of the problem.

I downloaded Thunderbird into a new computer and there are a lot less emails than on the old computer. I cannot find a setting to download the rest of the emails. Can you please help. Please send me an email telling me if I can download the rest of them.

Bruce Caress

May 7, 2026, 15:17 CST

Hello, I've been watching MSNOW at 4pm eastern and after about half an hour it crashes. I get a message to send a report and restore the tab. I restore the tab which works for maybe ten minutes and crashes again. I am using Windows 11 on a new computer. I'd appreciate some assistance. Thanks. Bruce Caress

Moderator note: This question has been edited to precise Firefox and OS version, based on the crash reports.

Hi, I use thunderbird as both POP and IMAP through gmail. I keep all my emails on my POP thunderbird desktop client. I use IMAP on my thunderbird laptop client, iPhone, iPad via Apple mail when remote, then download the emails to my desktop.

What I want to do is read emails and set them to archive on my IMA laptop, iPhone, iPad. I know Gmail tags the archived emails. How do I stop thunderbird from downloading the archived emails to my POP thunderbird desktop client?

Thanks! Art

I've been having this problem for about 10 years. It was raised in this thread but never solved.

When I launch Firefox, several recent bookmarks that had been at the bottom of a folder have moved to the top of the folder.

Moderator note: This question has been edited to correct the formatting.