모든 제품 커뮤니티 포럼

Why did Wikipedia suddenly appear in the address bar at the top and when I try to put in address it goes to Wiki on them not the website. The search bar in the middle that was Google is now Wikipedia. How do I get rid of it and go back to how it was before?

On both MAC and PC versions. I recently installed a new SSL certificate on one of our company servers. It works on most email applications without issue (Apple Mail, Outlook etc.) - but Thunderbird is complaining about the certificate. The certificate is coming from: sectigo.com

The error is: unknown identity The certificate is not trusted because it hasn't been verified as issued by a trusted authority using a secure signature.

If I confirm the default exception - it uses port: 443 - instead of ports 995 and 465.

A certificate exception has to be deployed by adding network.security.ports.banned.override to the configure editor. Adding a string of 995 and then 465 to make the exceptions. It doesn't always work....

You can view the certificate here: https://email.ibsltd.ca

I have used multiple online scanners and they all give green lights on the certificate. Any help appreciated... I have no idea where to go from here.

This is the screen I get when I follow the instructions from the first denial screen:

400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know.

the last time I received an email update on my desktop PC (Win 7 Pro) was 4:08PM (yes, PM) for one account and 4:44AM (yes, AM) for the other account. On my phone, the 4:08PM is the same but the other email account recd an update at 3:17PM.

I was searching for an email that I had just deleted and discovered that the Trash folder connected to my inbox was empty. The one connected to my Local folders, however, was not. I cannot find a setting that would instruct Thunderbird on how long to save emails in the Trash folder and am sure I did not accidentally change anything. Any idea how to fix this?

As of yesterday, whenever I have to open my Firefox browser on my laptop I get the "You've launched an older version of Firefox" pop up email. I have to log in and set up all my preferences each time. I have never had to do that before.

I'm aware of the many caveats regarding use of 'Repair Folder'. It's widely known that the results are...inconsistent, to put it charitably. Nevertheless...

I keep vast quantities of messages in local folders. For some of those folders, I manually archive the contents annually, by creating a new folder with the name of the year ("2025"), then dragging messages from the existing folder to the new folder. This sometimes works. More often than not though, it fails in one way or another. Sometimes I drag them across, a handful of them show up in the new folder, but then the rest just sit there in the old folder, in selected state, but with no activity taking place. Sometimes merely selecting smaller 'chunks' of messages to drag across will work. In others, such as last night, even that didn't work.

I then invoked 'Repair Folder' in a vain attempt at recovery; sometimes that will clear the issue. However, when I did this, what happened is that the chunk of messages that were selected wound up having all their date fields (in the display) reset to near the epoch - January 20, 1970. When I view the message source, the dates are correct.

I'm unable to find a way to recover from this.

Any advice would be appreciated.

Windows 10 Pro 22H2 Thunderbird 128.11.1esr (64bit)

I use Thunderbird for several yahoo email addresses that I have. Yesterday the one account wasn't transferring over from yahoo so I deleted it and then reinitiated it (POP server setting). I've done this before with another email address I have and it worked, but things must have been set up differently this time as it no longer showed any of my older emails (apparently only showed what was still present at Yahoo's site). My understanding is that my old emails would still be saved on my computer (Windows 10), and I went through the steps on Thunderbird to get to where the stuff is on my computer but when I open any of what appear to be the stored emails, everything is coded in such a way that it's near impossible to read. I'm hoping I can somehow transfer them back to Thunderbird somewhere or, if not, open the file so I can at least read them easily. The Local Folders file that's currently on Thunderbird for some reason has stuff from another email address I have (I believe that one is imap and not POP). I'm very uncomputer savvy, so any help I can get would be greatly appreciated so I don't mess things up more. Thank you

I have an 8 year old PC that I have been using Thunderbird on its entire life. I have 5 email accounts (from my own website if that matters) on it for personal use that have tons of information.

I bought a new computer and have not been able to move my old data to it. The old computer uses Windows 10 with Thunderbird Version 115.5.2 (32 bit). The new computer uses Windows 11 and I have tried several Thunderbird versions with the current one being 128.12 0esr (32 bit). I have added one of my email accounts to my new computer, but it contains none of my previous data (emails, contacts, directories, etc.), just a bare bones account that only receives new email.

I have repeatedly tried to move my entire source computer setup and data going through all of the described steps including copying the previous Thunderbird folder to a flash drive. I then follow the directions for copying and pasting my source data into the new computer's "roaming" section. It goes through all the steps including asking if I want to overwrite existing files. I have almost 14,000 files and as the process continues, I can see file names being added just as I would expect.

After everything is complete, when I restart Thunderbird, the only access I have is once again to the bare bones new email account. There is no data, nothing at all, from my source computer.

Help please, this has gotten beyond frustrating.

When using any Microsoft 365 product on the browser I keep getting a prompt to "Please sign in" although I am already signed in. I can click the Sign in button and a about:blank page pops up for a split second. Then within a half hour or so, it will pop up again. I deleted my cookies but the problem still persists. Does not happen on other browsers.

Dear Firefox Team,

I’ve been a loyal Firefox user for years, and I generally love your browser. However, I recently experienced a serious issue due to how Firefox handles saved sessions, cookies, and multiple logged-in accounts.

I had two Gmail accounts saved in Firefox, both of which were at some point used to access Fiverr accounts — one active, and one previously disabled. During a session where I was logged into my active Fiverr account, my internet went down temporarily. When I refreshed Fiverr after the connection came back, Firefox reloaded a session that appeared to be linked to the disabled Fiverr account — even though I never intentionally accessed it.

As a result, Fiverr’s automated system flagged my active account for being "connected" to a banned one. This has had a direct negative impact on my freelancing career — my account was permanently flagged, and I lost access to valuable clients and my work history.

I understand that session management and cookie handling are standard browser features, but I want to highlight how important session isolation and protection from unintended auto-logins are, especially for freelancers and remote workers using platforms like Fiverr, Upwork, and others.

Please consider offering better controls or clearer separation between accounts (e.g., warning before auto-loading saved sessions, stronger isolation per Gmail/Fiverr session, or more powerful multi-account browsing containers by default).

This small technical behavior has led to a major professional loss.

Thank you for your work on this browser, and I hope you’ll take this feedback seriously to help prevent this from affecting others in the future.

Sincerely, A frustrated (but still hopeful) Firefox user

– Ehsan, Freelancer