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the build in VPN is not working anymore: the messages we get are often like "no internet connection". i did use it now for some weeks, but after the last update it stopped working now for some days.

All of the incoming messages are going to Trash. This includes messages I have not indicated as trash. I get no new messages to my inbox. Started today, 09/04/2026.

when I went to turn on Firefox this evening, the icon was gone and there was no access to Firefox. The only way I could access the internet was through Safari, which I otherwise never use. This happened 2 or 3 weeks ago but, that time, I was able to find the icon. This time that is not the case.

The new VPN feature is really wonderful. But I'll run through my 50gb practically overnight if I leave the feature on and all my YouTube traffic runs through it.

I would like a feature where I can whitelist (or blacklist?) certain websites. Then, my personal browsing on most websites would be protected even if YouTube could get its hooks into me.

How do I get Firefox to stop flagging Canadian spellings as wrong when English-ca is my top preferred language in settings? I am writing a WordPress post using Firefox on Mac.

I mostly watch YouTube channels on Firefox on my laptop, but recently have had to change over to Microsoft Edge browser to watch YouTube. The reason is that during a channel stream, when an ad wants to play, YouTube and Firefox freeze and the only way to exit the screen is to either attempt to close YouTube or even open Task Manager to shut down all instances of the Firefox software. Firefox is by far my preferred browser and I'm frustrated that it is unusable in its current state. I tried to uninstall and reinstall, but this did not work. Thank you in advance for your help.

Graham Caveill

I have no saved passwords, yet on some sites that require a login, a selection box shows a couple of choices for a user name/id for me to select. How do I clear these or stop the popup. It';s annoying. Thanks

Starting today (September 3), ALL of my received emails are being put into the Spam folder instead of the Inbox.

FYI, I have been running Thunderbird (TB) for years and have not recently set up any new filters.

I'm currently running Thunderbird 64-bit version 155.0 under Windows 11 Home version 25H2. I am also running Bitdefender Total Security, but I have turned off its Antispam function, both under my usual Standard User account and the Admin account.

I have tried:

1. Going into TB Settings|Privacy & Security|Spam and clicking on "Reset Training Data." 2. After closing TB, I deleted the training.dat file in my TB profile folder and restarted TB. 3. Right-clicked on my Inbox and Spam folders and clicked on "Repair Folder." 4. Exited TB, copied my profile folder to an external HD, uninstalled TB and reinstalled TB after downloading from the official download site. 5. Rebooted my PC.

None of these approaches has worked to solve my problem.

Thanks for any help you can give.

This shield on the search bar is making firefox on win11 unusable for me. I set browser.urlbar.trustPanel.featureGate = false but it still displays. Why do they keep making these changes, it seems like every month there is a new change requiring setting changes,

I had problem with a certain website, did trouble shooting mode and refreshed FireFox. Website works now but I keep seeing this when FIreFox starts. I set FireFox starts with default Firefox Home. Any suggestion how to correct this nuisance?

I have Thunderbird 155.0 installed and also, TBSync + Google-4-TbSync to synchronise contacts between TB and Google.

However, I have just realised it hasn't been working for several months and TBSync is no longer compatible.

Are there other tools/techniques available to sync the contacts with Google?

I have been using Thunderbird successfully on Windows for years now, as my email client for a PlusNet email account in the UK. In May 2026 Thunderbird suddenly disappeared, as if it had been uninstalled, but I have no idea why. I managed to reinstall it and rediscovered the server details needed to reconnect to my account and fortunately had a slightly old back up (from Nov 2025) of previously saved emails. This has worked OK now for about a month.

Today the same thing has happened again - The Thunderbird icon on my desktop does not connect to anything and has just turned into a white "blank page" icon.

I may be able to get the account back by doing the same tedious process again, but I am concerned that this may keep happening and I don't know why.

This is a work laptop running Windows 11 so its possible I suppose that some sort of security software may be doing this without notifying me?? I am using Thunderbird to access a personal (ie not work) email account so maybe my work systems don't like that? As mentioned, it has worked fine for years so I dont know where the problem lies but it is worrying and annoying.

PlusNet last year transferred all email accounts to another UK provider (Greenby) but that has worked OK and I cannot see how that would affect email client software.

BJ

Notification requests I would like Thunderbird to 1) notify me that I have received new email(s) even before I have opened Thunderbird. Partly by changing the icon on the taskbar and partly by playing a sound. And 2) also retrieve the emails that are there automatically when I open Thunderbird. Is that possible? How do I do that? K.r. /hans peter

After your upgrade I was unable to send messages. The incoming I was able to fix but the outgoing I could not fix. I have included the email message sent to me and I have included a picture of the outgoing STMP,

Hello!

I have the "Block AI Features" setting enabled, but I'm still getting the "Ask Gemini" option in the long-hold context menu for Firefox Mobile on Android.

Is there any way to remove this option? It's cluttering the context menu and I dont want to misclick it. Or otherwise, is this a known and tracked issue?

I know Firefox is slow when opening Facebook. It's busy blocking all their crap. But recently it's been super slow and non-connective to many sites I visit often. I've Ookla checked my connectivity and their excellent. Logging into sites I've visited before is now taking a long time some having to be resent. IE: www.clevelandclinic.org, local government sites etc.