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I have a new Windows 11 lap top and have been trying to make Firefox work the same as on my Windows 10 laptop. I looked at "Bookmarks import doesn't show bookmarks on title bar? " and tried to follow the instructions. The result is that the bookmarks toolbar contains both "Import bookmarks" and "Bookmarks menu" but not the actual Bookmarks Toolbar titles. The Library shows:

   *All Bookmarks                   (The asterisk is bold inside a square)
         Bookmarks Toolbar
         Bookmarks Menu
               Mozilla Firefox        (Get Help}
               Mozilla Firefox        (Help and Tutorials)
               Mozilla Firefox        (Help and Tutorials)
               Bookmarks Toolbar
                    Finance
                    Trade
                      (et al)
         Bookmarks Toolbar
              Finance
              Trade
                 (et al)
   $Bookmarks Menu            ($ is actually a menu emoji)
         Mozilla Firefox              (Get Help}
         Mozilla Firefox              (Help and Tutorials)
         Mozilla Firefox              (Help and Tutorials)
         Bookmarks Toolbar
              Finance
              Trade
                (et al)
   %Other Bookmarks           (% is actually folder emoji)

As you can see, I am going round in circles. I do not understand properly how bookmarks work. On my old Winows 10 laptop, I managed by trial and error to get something that I could use, but now I am mostly getting error.

Hello Thunderbird Support, I am experiencing a severe IMAP folder synchronization loop with my Yahoo Mail account ([redacted]@yahoo.fr) inside Thunderbird. Yahoo Support claims the issue is caused by Thunderbird's folder mapping, so I am reaching out to you for a solution.

1. 1. The Problem:

The system-protected folder "Bulk" (Spam) has somehow been moved or mapped as a subfolder inside the "Trash" folder.

• In the Yahoo Mail Web UI (Chrome), the subfolder is invisible, but the Trash directory shows an arrow (^) indicating a child folder exists.
• In Thunderbird, the Bulk folder is clearly visible inside the Trash folder, marked with the flame (Junk) icon.

1. 1. What goes wrong:

When I delete spam messages via Thunderbird, they get trapped inside this nested Trash/Bulk directory. If I try to delete or empty it, the emails disappear but the folder itself cannot be removed.

1. 1. Steps tried so far that failed:

1. Attempting to delete or rename the Bulk folder inside Trash gives the server error: [CANNOT] DELETE failed - Mailbox is reserved. 2. Using Shift + Delete on the folder is rejected by the Yahoo server. 3. Unsubscribing from the folder via "Advanced IMAP settings" -> "Show only subscribed folders" fails; Thunderbird re-downloads the structure on the next sync. 4. I have completely deleted my old Thunderbird profile folder and created a brand new one using thunderbird.exe -P. Upon adding the Yahoo account via OAuth2, Thunderbird immediately pulled the same broken Trash/Bulk structure from the server again.

Since Yahoo refuses to help and claims Thunderbird caused this mapping loop, is there a hidden config setting (about:config) or a database override in Thunderbird that can force the server to release or move this reserved folder back to the root directory? Thank you for your assistance.

Thunderbird for Android (unlike the standard Android Email) still does not offer the ability to shrink a photo before sending it. The workaround is so clunky, having to use an Android photo editor to shrink images one by one, especially if one wants to send multiple photos, saving each one and then going back to Thunderbird to send the smaller images. Any idea where this feature is in the development list?

Hi, this seems to be a strange issue. I have a hotmail.com and outlook.com account as well as gmail. The hotmail one was in general use/default. It recently stopped authenticating over my main PC Thunderbird installation. The PC is a new build and was listed as a "known device" in the MS account settings. I tried removing it and it seems to not matter. But it all worked fine for awhile up until Meadows. It has authenticated a handful of times since then, particularly if I'm logged into the MSN account via the web, but not always.

I've tried changing to POP instead of IMAP and that removes the authentication error pop up message but it still won't update the folders/doesn't work. There's just no error message, so I changed the server settings back to IMAP.

It's all the same settings as worked previously including on this very computer. The same settings work with the outlook.com email, including on Thunderbird on this PC. But that wasn't in daily use or as default. The one that's no longer authenticating however was.

I've tried switching to a new profile and it doesn't work. Tried reinstalling Thunderbird and deleting old profiles to fully recreate, doesn't help.

Outgoing on this same failed account does work, only incoming will not Authenticate or update.

I have a laptop with a Win 11 and Thunderbird setup similar to as on the PC, works fine on the laptop with the same settings. In creating the accounts the "test server settings" feature returns no errors as well.

I can't tell where the actual source of failure is beyond that as the error message isn't very detailed or informative and based on the overall behaviour where it works flawlessly on the laptop, worked with those very settings previously on the now failing install, still works very rarely as well, up to and including on this same PC via Outlook program or over the web, with all the same settings. So it seems specific to Thunderbird, post Meadows update, on this PC, with only that email.

To further clarify, I have a second outlook.com based email, which still works with Thunderbird on this PC where the hotmail based account fails authentication. I also have tested the failing email via the Outlook program on this PC, including over the web by logging in with Firefox, that all works, just like it works with the laptop.

What I haven't tried to do when reinstalling Thunderbird is scrape every hint of prior installs out of it, but I did delete all of the profiles folders and content. I also just tried creating a new profile and making it the default. None of that helped.

Thanks

Здравствуйте. Я установил сертификаты по инструкции, которая лежит на s.sber.ru/70VQ2B . После этого в мозилле не прогружается полностью окно входа на online.sberbank.ru, не видно содержимого фреймов (сейчас попробую сделать скриншот). В Microsoft Edge работа нормальная. Удаление сертификатов, перезапуск браузера и компьютера не помогли. На других компьютерах ещё не проверял. Посоветуйте, пожалуйста, что можно сделать. Windows 10, Firefox 153.0.3 (64-разрядный).

I have albinism. Pure white backgrounds are not an annoyance – they cause physical eye pain and trigger migraines. Every time I visit support.mozilla.org or accounts.firefox.com, I am forced to endure #FFFFFF with no way to change it.

To anyone about to defend Mozilla blindly: this is about accessibility and eye pain, not brand loyalty, so do not silence me.

What Mozilla has done:

• Disabled extensions (Dark Reader, Stylus, Dark Mode) from modifying these pages – they are explicitly blocked by Mozilla's own Content Security Policy.
• Removed ui.systemUsesDarkTheme and layout.css.prefers-color-scheme.content-override from having any effect on these sites – they ignore prefers-color-scheme entirely.
• Left no about:config toggle to disable the forced light theme.

The only remaining workaround is a userContent.css hack with filter: invert(1) – which requires a visually impaired user to manually edit CSS files and restart the browser. That is not accessibility – that is hostility.

Security excuse – debunked:

• "We block extensions for security" – extensions are sandboxed. Blocking them on your own support pages is a deliberate policy choice, not a technical necessity.
• "We want a consistent brand appearance" – branding does not override accessibility. Forcing #FFFFFF on users with light sensitivity is a violation of basic inclusive design.
• "We respect prefers-color-scheme" – you do not. These two domains explicitly override it.
• "Users can just use Dark Reader" – you block it.

What I demand:

Make support.mozilla.org and accounts.firefox.com respect the system prefers-color-scheme media query. If you insist on light branding, add an official dark toggle in the site header – stored in a cookie or account preference. Stop blocking extensions from applying user‑chosen themes to your own sites. That is not security; it is control. You are a non‑profit that claims to value accessibility and user control. Your actions say otherwise. Fix these two domains. No CSS hacking should be required for basic vision safety.

Hello, The inbuild VPN feature does not show up/ can't find it. (Image attached) I already followed all the steps in this guide https://mzl.la/4wHaR5u (didn't help). And i checked if the Feature is availlable in my region (Germany). I simply dont know what else i could try. Thanks in advance,

One of my "Login required" sites (Call it Site One) is prompting me with a username when I click into the Username entry box. Unfortunately, the username it's prompting me for is from "Site Two".

I have never saved a username for Site One. The username it's prompting me with is from a completely different domain name, Site Two.

I searched Usernames/passwords and found only one occurrence for the username it is prompting with. It's properly listed under the correct Site Two. I deleted it anyway to test. That made no difference: it still appears in the drop down for Site One (after restarting Firefox).

Just to be clear: Site One has no stored usernames or passwords. I've never stored a username or password for Site One. I have done so for Site Two (but again, that's now deleted). Yet this username, which is now not stored anywhere in Firefox, is still appearing as a prompt for Site One.

Lastly, this is not a new issue. This problem dates back months.

I had to start anew with Firefox on my desktop. New password and settings. I am recognized, but i cannot find my e-mail to open

you say you will send an e-mail when someone has an answer for me .. i may get it on my mobile, but my desktop does not even have an e-mail account showing

I upgraded my 2012 macbook pro to the latest version of thunderbird and I can not get my emails. I am running os10.15.8 Every time I try to get messages a yahoo page opens up and wants me to sign into my yahoo account. I can't get rid of the yahoo page it just keeps reopening again and again. Everything was working fine until I upgraded thunderbird to 153.0.3esr. My other mac that has not been upgraded can still get my emails.

Is it possible to go back to the prior versions of thunderbird or make this new version work with my mac?

Hey y'all.

I was messing with devtools before on my own site, and now whenever I go to tetr.io I keep getting "Debugger paused". Clicking the little "Deactivate breakpoints" icon in the Debugger tab in devtools changes nothing and it's still there.

tetr.io used to work on Firefox; I think when I was on 154 was when I last went on there.

Have used Thunderbird for years and never had this issue before. Just upgraded to Thunderbird 115.18.0 esr and my calendar is now blank. Did the upgrade erase the data or is a pointer off somewhere? Can I get my calendar back?

When I open Firefox I get a large number of warnings. I have run three separate scans (Norton, Malwarebytes, Spybot S&D. I have then restarted my PC and these messages re-appear.

The essages state "Warning: Virus detected" "System Alert!" "Trojan Detected!

The messages try to lead me to watrixa.co.in to Scan & fix or remove the viruses. It will not let me close these warnings.

Allnof a sudden, I have no homepage when I click the Firefox icon it just goes to a white screen. I had custom colors. I had all kinds of little icons there that I would sometimes remove and sometimes not remove. I found a fire box update a d it a my default browser

I have installed Thunderbird 154 in Linux Xubuntu 26.04 and I have Thunderbird working fine except for the scrollbar arrow buttons. I was able to set the scrollbars to always show but arrows do not show. What do I need to set to bring those arrow buttons back?