You just introduced a new "HTTPS-Only Mode" -- as of the last version or two, it no longer allows access to an "http://" site. All such sites are blocked only by Firefox. Is there a fix?

In the Settings, the "HTTPS-Only" feature seems broken. There is an option to 'Don't enable" this feature, but that doesn't make any difference. I can get to an "http:" s… (read more)

In the Settings, the "HTTPS-Only" feature seems broken. There is an option to 'Don't enable" this feature, but that doesn't make any difference. I can get to an "http:" site using any other browser, but not with the latest Firefox.

Open 7 1

Incoming messages routed to Trash

As of two days ago, all of my incoming messages are going directly to the Trash folder. On Thunderbird, I've deleted all my message filters, and disabled adaptive spam f… (read more)

As of two days ago, all of my incoming messages are going directly to the Trash folder.

On Thunderbird, I've deleted all my message filters, and disabled adaptive spam filter logging. On my webmail provider, I've deleted all filters there and checked for any changes that might be responsible (there are none). None of this has fixed the problem.

I have a POP account, if that's relevant. Please help! Thank you.

Open 2

email accounts disabled

Since this morning there is no sign of my emails accounts and majority of functions appear disabled, it never happened before. Can somebody explain what happened? Please… (read more)

Since this morning there is no sign of my emails accounts and majority of functions appear disabled, it never happened before. Can somebody explain what happened?

Please check the image attached

Open 4

Thunderbird not connecting to server. Cannot send or receive emails.

Thunderbird not connecting to server. It says timds out and an error occurred connecting to mobile.charter.net. I can neither send or receive emails. This started 8/20… (read more)

Thunderbird not connecting to server. It says timds out and an error occurred connecting to mobile.charter.net. I can neither send or receive emails. This started 8/20/2026

Open 35 10

I would like to add my own choice of AI bot.

Choose an AI chatbot to use in the Firefox sidebar Switch anytime. For help choosing, learn more about each chatbot. Choose an AI chatbot to use in the Firefox sidebar Ch… (read more)

Choose an AI chatbot to use in the Firefox sidebar Switch anytime. For help choosing, learn more about each chatbot.

Choose an AI chatbot to use in the Firefox sidebar Choose an AI chatbot to use in the Firefox sidebar Anthropic Claude ChatGPT Google Gemini Mistral Vibe I want to add one that is not here! Continue Close

Open

Can't get email from Yahoo server

I can no longer get email from my Yahoo email account. I've gone through all the troubleshooting hints and recommendations, as I understand them, but without any luck. … (read more)

I can no longer get email from my Yahoo email account. I've gone through all the troubleshooting hints and recommendations, as I understand them, but without any luck.

I only have the one account.

The Activity Manager (see attached) shows "No messages to download", but the message at the bottom left said there were messages, but TB doesn't download them.

Open

trying to download latest Firefox, the window I geet from Firefox help won't download newest verdion

I use the link provided in firefox help. It provides a window with a link to download a new version. but I click on the link, get an update window. I click on the downl… (read more)

I use the link provided in firefox help. It provides a window with a link to download a new version. but I click on the link, get an update window. I click on the download now and the download doesn't happen. It just sits there showing 0 bytes downloaded. How to update?

Open 2

Thunderbird Email: since Sept 2 Thunderbird update 155, my incoming emails are no longer coming into my inbox.

Thunderbird Email: since Sept 2 Thunderbird update 155, my incoming emails are no longer coming into my inbox with my domain host provider webnames.ca. My other staff me… (read more)

Thunderbird Email: since Sept 2 Thunderbird update 155, my incoming emails are no longer coming into my inbox with my domain host provider webnames.ca. My other staff members have no problems since the update. The only unique thing I can think of is that with my host provider is that I automatically forward incoming emails to my gmail account. Some other staff automatically forward thunderbird email to another thunderbird email of the same domain name without an issue. I can get incoming emails from my other thunderbird accounts ending in the same domain name. The emails do show up in the forwarded gmail account.

Open 1

Setting up a new email account

I am trying to set up a new email address with Thunderbird. I have copied all the imap and smtp settings from my old address in to the new one. It is now asking for a pas… (read more)

I am trying to set up a new email address with Thunderbird. I have copied all the imap and smtp settings from my old address in to the new one. It is now asking for a password but I have not been asked to set up a new password for the new address. Where do I go from here?

Solved 6