How to handle Local Folders

Hello I am setting up a new Windows 10/11 Computer, with new virgin Thunderbird installation. My "old" TB mails on the "old" computer I would like to migrate to my new "L… (read more)

Hello I am setting up a new Windows 10/11 Computer, with new virgin Thunderbird installation. My "old" TB mails on the "old" computer I would like to migrate to my new "Local Folder" and keep it for future reference (archived in read mode, but keep it accessible with the search function). How, and what do I have to move with the window explorer to the new W10/11 computer. I was reading up a lot but I am rather confused now. Thanks for helping

Asked by amey2 5 hours ago

Last reply by George Kitsoukakis 3 hours ago

Unable to send emails

My cat laid too close to my keyboard (i.e., by the control, shift, and windows button) and I am now unable to send messages from any of my email address in Thunderbird. I… (read more)

My cat laid too close to my keyboard (i.e., by the control, shift, and windows button) and I am now unable to send messages from any of my email address in Thunderbird. I've checked the server settings and they all appear to be correct, but I keep getting the error message that connecting to the smtp failed. I'm receiving emails, but can't send them. Is there anything else that I might be missing apart from checking the server settings.

Asked by juliesmith1 3 hours ago

HTTPS mode only on IOS for my iPhone 14

Hello, I put the HTTPS mode Only mode on my OS for Imac, and I would like to put it on my iPhone 14, but I can't find how to do it, can you help me? THANKS. Best regards,… (read more)

Hello, I put the HTTPS mode Only mode on my OS for Imac, and I would like to put it on my iPhone 14, but I can't find how to do it, can you help me? THANKS. Best regards, christophe

Asked by cmm21 1 day ago

Last reply by Kiki 4 hours ago

Thunderbird calendar notifications don't always work as expected

Hi I am using thunderbird with the integrated events connected to various google domains. My calendar looks synchronized and notifications show up. I am on popos on a lap… (read more)

Hi I am using thunderbird with the integrated events connected to various google domains. My calendar looks synchronized and notifications show up. I am on popos on a laptop. The thing is that a lot of time the notifications show up late; like not hours late, but let's say 5 minutes late and sometimes they don't re-appear after the initial reminder. So it's not 100% sure that you will get reminded or pinged at the right time. I have not figured out any specific rule when it works and when it won't. Curious if anyone else is running into such problems. Thanks Andreas

Asked by Andreas Richter 4 hours ago

PDF Links Not Opening

Hi, I am having an issue in mobile on iPhone 13 mini where I am trying to view a PDF (a bill so I can’t share the link) and it just opens to a about:blank page that says:… (read more)

Hi, I am having an issue in mobile on iPhone 13 mini where I am trying to view a PDF (a bill so I can’t share the link) and it just opens to a about:blank page that says:

“Your bill is almost ready. Please wait.

Are you using a Chrome browser? Check your browser’s Downloads folder for a PDF of your bill.”

I wait and nothing happens. When I try in chrome it opens immediately in another tab (and doesn’t go to the downloads folder funny enough).

It isn’t in my downloads folder here either.

I don’t think it’s the site since it works in chrome.

I tried turning off pop up blocker, clicking the link again, and it didn’t change anything.

I also notice it is labeling the blank page as an insecure connection. It is from my city electric company so that wouldn’t be likely.

Thank you

Asked by Anabananalisa 5 days ago

Last reply by Kiki 4 hours ago

strange font

hi in a new win 10 instal most text incl Fire Fox text is made up of letters [font] that are made of thin and thick lines [in the same letter] i dont know if its a stra… (read more)

hi in a new win 10 instal most text incl Fire Fox text is made up of letters [font] that are made of thin and thick lines [in the same letter]

i dont know if its a strange font or another problem, i have copied all "font" setting from my other pc where i dont have the problem.

also i cant get spell check to work here dsespite turning it on

its very distracting, would be very gratefull for any suggestones if any one can 

help thanks

Asked by bill 3 days ago

Last reply by bill 4 hours ago

Thunderbird Extension API Returning Stale Cached Data for Gmail IMAP Folders

Dear Thunderbird Team, I am writing to report a critical issue with the Thunderbird Extension API where it returns stale, cached data instead of live folder contents for… (read more)

Dear Thunderbird Team,

I am writing to report a critical issue with the Thunderbird Extension API where it returns stale, cached data instead of live folder contents for Gmail IMAP accounts.

Issue Description The browser.messages.list() and browser.messages.query() APIs are returning outdated message data from 2016-2021, completely ignoring the actual current contents of my Gmail IMAP inbox. While Thunderbird's UI displays current emails correctly, the extension API serves permanently cached old data.

Evidence of the Bug What Thunderbird UI Shows: Current inbox with emails from today and recent weeks

Real-time folder contents

Proper folder synchronization

What Extension API Returns: Only 100 messages total (artificial limit)

Messages exclusively from 2016-2021

No emails from 2022-2025 present

Completely ignores current folder contents

Technical Details: Profile: /Volumes/Data/Mail Files/Thunderbird/Profiles/aq8q4la7.default-release/

Account: Gmail IMAP (imap.googlemail.com)

Folder: account1://INBOX

API Used: browser.messages.list(folderId) and browser.messages.query()

Steps to Reproduce Set up Gmail IMAP account in Thunderbird

Write extension using browser.messages.list() API

Compare API results with actual folder contents

Observe API returns stale cached data from years ago

Debugging Attempted We have tried:

Deleting all .msf index files

Clearing folderCache.json and global-messages-db.sqlite

Removing cache folders (cache/, cache2/, startupCache/)

Rebuilding folder indexes

Using different API methods (messages.query vs messages.list)

None of these resolved the issue - the API continues to return the same stale dataset.

Impact This completely breaks any extension that needs to access current folder contents, such as email tracking, automation, or filtering extensions.

Request Please investigate why the Extension API serves different (and outdated) data compared to Thunderbird's main UI, and fix the API to return actual live folder contents.

Thank you for your attention to this critical issue.

Best regards, Hasan

Asked by hasan_sharif 4 hours ago

  • Solved

Firefox iOS version 143.1.1's purple colors

I updated Firefox on my iPhone 16 yesterday. How can I permanently remove the purple coloring from the top and bottom, and restore a neutral white or gray? Is it possible… (read more)

I updated Firefox on my iPhone 16 yesterday. How can I permanently remove the purple coloring from the top and bottom, and restore a neutral white or gray? Is it possible to restore a previous Firefox version on my iPhone 16, or do I have to wait for another update? Thank you.

Asked by ausui 4 days ago

Answered by ausui 4 days ago

addons.mozilla.org opens in fullscreen everytime i open firefox

Hi! I'm experiencing a strange issue with Firefox. Every time I start Firefox, the site addons.mozilla.org opens automatically — and it opens in fullscreen mode (as if I… (read more)

Hi! I'm experiencing a strange issue with Firefox.

Every time I start Firefox, the site addons.mozilla.org opens automatically — and it opens in fullscreen mode (as if I pressed F11). Here's what I've tried so far:

I disabled all extensions, but the problem still persists.

I changed the homepage settings to a blank page and even other websites, but it doesn't help — addons.mozilla.org still opens.

The issue happens even after restarting the computer.

I haven't reinstalled Firefox yet — I’d like to understand what might be causing this first.

Any help or suggestions would be appreciated!

Asked by danyaturad 6 hours ago

Last reply by Konstantina Papadea 4 hours ago

Immersive reader renders page incorrectly

How and where do I report when immersive reader mode renders a page incorrectly? What are the rules governing immersive reader mode inclusion? An example is : Brit… (read more)

How and where do I report when immersive reader mode renders a page incorrectly? What are the rules governing immersive reader mode inclusion?

An example is : Britain prepares NHS drug spending hike to stave off Trump tariffs

Asked by Ade 4 hours ago

Bluetooth lag

Phone: Nothing 3(a) Headphones: Nothing ear (a) When using YouTube (phone speaker) all runs smoothly. But when using earphones videos desync and stutter very badly. My ex… (read more)

Phone: Nothing 3(a) Headphones: Nothing ear (a) When using YouTube (phone speaker) all runs smoothly. But when using earphones videos desync and stutter very badly. My extensions are "ublock origin" and "privacy badger" Any help or suggestions would be welcome

Asked by jclonebarnes 6 hours ago

Last reply by jclonebarnes 4 hours ago

How to completely remove Okta authentication automatic redirects from Firefox

I am an academic researcher formerly affiliated with an institution that uses Okta as its two-factor authentication service for access to institutional subscriptions (thi… (read more)

I am an academic researcher formerly affiliated with an institution that uses Okta as its two-factor authentication service for access to institutional subscriptions (think Elsevier, Cambridge Core, Brill, JStor, etc.). Since I am no longer affiliated with that institution, I am no longer authorized to access that institution's subscriptions. I am not trying to access that institution's subscriptions, however, if I try to log in to these repositories as an individual, I am automatically redirected to my former institution's Okta authentication page.

The browser: Mozilla Firefox 143.0.3. I am able to access other sites on other browsers, as well as in private Firefox windows, which suggests it is a problem with my Firefox account. These are temporary workarounds I can live with only in the very short term. I am under no circumstances willing to switch browsers. I use Firefox for a reason. FWIW, I am also contacting Okta support to see what they recommend.

The computer: Macbook Air 2020 M1. It is a personal computer. I do not have access to another device.

I have cleared my browser history, saved form data, saved site settings, cookies, and cache (x5). I have deleted all saved passwords containing the email address associated with my former institution. I have restarted the browser (x5). I have restarted my computer (x2). I have reached out to IT at the institution (they are flummoxed).

I'm nearing my wit's end with this. I'm working on multiple projects with multiple deadlines. The temporary workaround and constant barrier to access are driving me up the wall. I will be infinitely grateful for a permanent solution to this hellish problem.

Asked by Eileen Morgan 5 days ago

Last reply by Eileen Morgan 5 hours ago

Loss of Local Folders on upgrade to Windows !!

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show t… (read more)

Yesterday I upgraded my PC from Windows 10 to 11. Today I discovered my Local Folders are not visible. Searching tells me the messages still exist, but TB does not show the folders. I did the same upgrade a month ago on a laptop (Windows 10 Pro to 11), no problems. I didn't externally back up the messages as I am a dinosaur and don't know how, but at least they are still on the hard drive. Thousands of them though so I need the local folders back. Tried all the fixes I can find on the Community Forum, without success. Can anyone help please? Bob

Asked by bob246 1 day ago

Last reply by bob246 5 hours ago

Reappearance of Blank Pages of 8 Grids under Recent Activity

Dear Firefox Team, It has re-occurred to my Firefox Browser of the latest version of 115.28 with some websites which I have recently visited however which have appeared … (read more)

Dear Firefox Team,

It has re-occurred to my Firefox Browser of the latest version of 115.28 with some websites which I have recently visited however which have appeared 8 grids of blank or white pages again under "Recent Activity" as attached with the image for your technical troubleshooting suggestion.

Those 8 grids of Recent Activity in the older version of Firefox browsers used to have shown colorful graphics or images representative of the recent websites I visited in the recent past.

May I know what I am supposed to do to recover those graphics or images?

Kindly offer any suggestion or solution?

Thank you for your kind attention.


Mr. Topaz Chiu

Asked by Mr. Topaz Chiu 6 hours ago

Firefox freezes at Google sign in

Firefox freezes when I try to sign into YouTube via Google. Becomes totally unresponsive and I have to close browser. It's the only site this happens on. I have cleared t… (read more)

Firefox freezes when I try to sign into YouTube via Google. Becomes totally unresponsive and I have to close browser. It's the only site this happens on. I have cleared the cache and cookies, unchecked "Hardware Acceleration" and other recommendations from other posts. Please talk to me like I'm your Baby Boomer dad.

Asked by mbarroso 1 day ago

Last reply by Konstantina Papadea 6 hours ago