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If I need to upload a file I click on the OPEN or BROWSE button in the website, Open File dialogue opens trying to list the location it is already looking at, and it hangs for over 30 seconds before listing files. This is windows 11, but it did it when i had windows 10 too. I dont know what to do.

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.

[I am starting a new post because I was replying to someone else's post and it stopped working.]

After updating to TB v.140.0esr (then just now updating to v.140.0.1esr) from v.128esr, I cannot compose a new message in any Local Folders or my main virtual inbox. The +New Message button is there, but clicking it does nothing. It was working for over a decade before this.

However, going into the normal account folder inboxes DOES allow me to click the "+New Message" button and start/compose a new message.

I can still reply to messages in the local and virtual folders, just not start a new message.

I have tried disabling all security software. No luck.

I have ran Help > Troubleshoot mode with no addons. No luck.

When I create a new folder under Local Folders, clicking New Message still does nothing while in that new folder. But if I move that new folder to an existing email account, then go to the new folder, clicking New Message works correctly.

I am on Windows 10. I did use the addon Manually Sort Folders in the past, but not recently.

I ran the Check Error Console (ctrl+shift+J) on TB v.140.0esr. Here is the paste:

1752107893534 addons.xpi WARN Checking C:\Program Files\Mozilla Thunderbird\distribution\extensions for addons This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “”. background.html WebExtensions: Import modules with new 'ChromeUtils.importESModule' implementation.js:34 Hello there, I'm BorderColors-D! background.js:11:9 CopySent2Current: 3.39 on Thunderbird 140.0 Received: pong

1.0.9 background.js:141:33 no migration CardBookXULNotifyListener.js:600:13 TypeError: can't access property "document", currentWindow is null implementation.js:568:15 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing locales: An unexpected property was found in the WebExtension manifest. 1752107894980 addons.webextension.{a300a000-5e21-4ee0-a115-9ec8f4eaa92b} WARN Loading extension '{a300a000-5e21-4ee0-a115-9ec8f4eaa92b}': Reading manifest: Warning processing chrome_injectors: An unexpected property was found in the WebExtension manifest. New compose tab 5 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 5 styleswitcher.js:45:13 New compose tab 6 with identity id1 styleswitcher.js:31:15 Applying new border style for identity id1 to tab 6

Whenever i search something on google, firefox desktop (all fine on android) is failing to display the ai(gemini) answer no matter what questions i ask.

Same happens in the "AI Mode" option that is available in google's recent update.

And, I,m logged in.

This started since a week, everything was working fine before that.

Adding the images below.

I opened Thunderbird and could not get to the inbox or any other folders—it shows only the donations page. This is not okay. I do donate. Not much, not too often, but I do. However, if I open e-mail client and want to use it, then this is not a right moment to asking for donations. Or I should be able to do what I came to do and deal with donations issue later.

If you want users to pay for Thunderbird, it is of course okay, but please let us know in advance, give some time to mull it over and then clear the sheets. It is most inconvenient when this kind of issue is raised when you actually need to do something. And the message is unclear - how often and how much I need to donate (pay) in order to get to use Thunderbird without interruptions?

Thank you in advance and I do like Thunderbird. Just not this approach.

PS. Sorry for my bad English, not native speaker. PPS. Or, maybe this is some error that donations page does not "go away"?

For >20 years I have used Thunderbird as my email reader for various email accounts on my mac laptop. Last night Thunderbird stopped downloading emails from my yale.edu account. I tried removing the yale account and reinstalling it unsuccessfully. See attachment. The Yale IT rep told me that Yale very recently added security features that are probably preventing Thunderbird from working with it. They told me to use the Outlook app. Is there anyway I can get Thunderbird to work with my yale.edu outlook email account?

I ran the windows 11 system file checker (sfc/scannow) to fix a font problem I was having. It did say that problems were found and fixed and I do not seem to have that problem any more. After that, i could not access the Settings in Firefox. I uninstalled and reinstalled Firefox and still could not access Settings. I also cannot access any Web sites either by typing them into the address bar or using bookmarks. Both Chrome and MS Edge work.

I watch Rakuten Viki, and suddenly a recapcha box is popping up on the bottom right, blocking the full screen button.... so annoying,,,, how can i get rid of it/ THANKS

I installed Thunderbird (T-bird), and on the "Set Up Your Existing Email Address" tab, I entered my Xfinity e-mail address/password and clicked on "Continue". T-Bird is able to find the proper configuration in the Mozilla ISP database. I clicked the IMAP radio button and then "Done". That opens a popup window with the heading "Enter credentials for <my-email-address> on imap.comcast.net, but the window never prompts for anything (a prompt for my Xfinity password is what I expected). Instead I just get a message headlined "Unable to connect", with the subtitle "The connection was refused when attempting to contact localhost". This is followed by three suggestions for why that might be the case. I verified that: 1. The Xfinity site is NOT "temporarily unavailable" - I can log into Xfinity directly and see my messages. 2. My computer's network connection is operational since I can load any website at will. 3. I do have Windows firewall enabled, and I suspect that is root of the problem. How can I permit T-Bird to access the web??? Thanks.

I just got a new Epson 3-in-one printer and tried to sign up for the warranty. I got a message that the warranty was expired... I went to the Epson support site on Firefox and Malwarebytes blocked the site as malware... It said I could add the site as approved, but I don't know how to do that. "https://www.epsoncom.com/my-account/home". The Epson site said I already had an account but my password was incorrect. I had an Epson printer more than ten years ago; I don't remember the password and they don't provide an option to reset it. HELP, PLEASE.

The comment sections for foxnews.com and other sites disappeared using Firefox but not when I switched to Chrome. This just happened 6-18-25. Before this date, it worked on Firefox.

Using Firefox, my gmail inbox is my home page - and has been for several years. As of yesterday, the page opens but the page is blank. I am not aware of any changes that I have made.

I do not have this problem using chrome on the same device or firefox on other devices.

Probably something simple, but I have no idea what.

Thank you

Hello I have reinstalled my firefox on a new reinstall of windows 10 as my older version 10 crashed and went to the wall. however I have all my tabs and fafourites up and running but when i try and download my paid version of Nord VPN firefox comes back and says its not secure and wont load the website ? this has been working for me in the past. any advise would be greatfully accepted. thank you.

I have sound in Windows, but YouTube is dead quit. I have tried all that is suggested in Firefox help and some YouTube sites. Nothing worked. I have tried off the computer and restarted, but no change. My system is Windows 11, sound works, and the latest Firefox update installed. Question is this a YouTube tacit to stop NoScript and uBlock?

Thunderbird is not synchronizing with Mailfence. My other email accounts (Outlook, Gmail) work fine. TB connects to them, downloads message headers and displays the number of messages correctly. With Mailfence, the messages stop at "connected to imap.mailfence.com" and stalls there. The message disappears after a few seconds and nothing else happens. This happened this morning when I first launched TB. I then got an update to 128.11.1. No change. I did receive the Windows Update 2025-06 Cumulative Update sometime overnight prior to launching TB.