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Hello!

Lovely mail app you've built, thank you.

I was just wondering if it's possible to add an inbox zero message/statement/picture when the entire inbox is empty (maybe a toggle for this in the settings) to reward users who finish their inbox, in both Android and Windows version.

Thanks!

The option "Apply current view to --- -> Folders and subfolders ..." does not work! It ONLY applies to the current folder and also is no longer active after restart of the program. This is VERY annoying!

Until today Oct 14, 2025 I could edit the subject line on my incoming e-mails by right clicking the subject line and use 'edit subject'. As of this morning that option is not available in the context menu that comes up when I right click the subject line for an e-mail in my inbox. anybody have any ideas? I use this function constantly in my business to add the customer name to the subject line for customer searches and if I send a copy to a vendor so all messages pertaining to that customer are easily found.

I can't find where to edit the rules that I previously created for what will happen when a certain mail comes to my mailbox. I set up a rule that marks a mail from a certain sender with "Important" and also sends a copy to another mail adress but now I can't edit the rule. Can someone help me with where I can find the rules and edit them?

My inbox was inadvertently moved down in the list of folders and I am not able to drag and drop it back to the top. It looks like there used to be a "Manually sort folders" extension but it no longer works. Is there a way to reorder folders manually? I use 140.0.1esr (64-bit).

When I compose email messages, I want them to be plain text only. In older versions of Thunderbird, this worked fairly well, but in new versions, even though the message is sent as plain text, it is not the same text that I type into the editor.

For example, if I begin a line with "> " (greater-than space) to indicate a quotation, Thunderbird will add another space at the beginning. I once tried to send "-- " (dash dash space, a signature marker) in a message, only to find that Thunderbird replaced the space with a non-breaking space.

I didn't ask for that. I want the content of the message that I send be exactly what I type, nothing more, nothing less. No reflowing, no subtle character alternation. Is there a setting to disable those mis-features?

I have been using Firefox since I first started using computers, so for over fifteen years. Initially, I only used it on my PC, but for the past few years I have also been using it on my iPhone and iPad. Until now, I have been a very satisfied user, but for some time now I have been extremely dissatisfied with Mozilla and Firefox. I have been using Startpage as my search engine for many years and Firefox is set up that way on all my devices. But on Apple devices, every time I open the browser, Google is now set as the search engine again and I have to correct the setting every time. I find this patronising, inconsiderate and extremely rude. If this cannot be changed very quickly, Firefox will no longer be my default browser on any device. I would be very sorry to see that happen, but it really is not acceptable. Are you so short of money that you have to rip off your long-standing users? I would be very grateful for a reasonable and helpful response.

Every time I want to print an email, the default copy number on my printer menu is shown as 2.

I don't know how, when or why this change [from 1 copy to 2 copies] happened.

I wish to 'reset' the default copy number to 1, so I don't accidentally print a second copy and waste ink, etc.

When I want to print documents stored on my PC, the copy number field on the printer menu is blank, allowing me to enter the number of copies I want - so the issue appears to occur only when I print emails.

Others have mentioned this but I'm not sure if there is a fix/anything is being done. The threads are all from previous Thunderbird versions.

I use Thunderbird for work. I have to find specific emails and folders - get to them quick. I am no longer able to do this. It's really distressing.

This is something really basic, that should be the default or else really easy to change.

I'm on a Windows machine and using Thunderbird 140.3.0esr. I've been using Thunderbird since 2003 and never had any problems. Now I'm panicking!

Not a huge problem, but VERY FRUSTRATING! After years of reliable performance, my personalized incoming mail notification sound (wav format) suddenly stopped playing. The 'test' function in settings works fine, but NOTHING happens when actually downloading messages. I've tried EVERY possible FIX, but NO LUCK. Any suggestions? Thanks

Where is the configuration setting that enables javascript. Consumer Reports requires that the application be enabled to participate in a webinar I want to attend

I have 1 computer that shows bars at the top and left side that I like. The one at the top shows Get messages, Delete, Reply, Reply All, and a few more items. The one on the left side shows icons that are for Mail, Address Book, Calendar, Tasks, and Chat. I have another computer that doesn't have those bars. I have attached a screen shot from that computer. Both are running T'bird 140.4.0esr (64-bit) and both are Win 11 machines. I've tried everything I can see to get the 2 bars to appear on the 2nd computer. I hope someone can tell me how to get them to show up. Thanks, Mike

I want nothing to do with AI.

I have unticked perplexity.ai in preferences#search but every search from the search bar and address bar goes to perplexity.ai then immediately crashes and displays "Internal Error".

To use DDG I have to type duckduckgo.com on the address bar then search from there.

Firefox 140.4.0 ESR.

I've' scanned the PC with malwarebytes. I restored windows from a backup image I haven't made any changes to the PC at all. Was working fine in the AM but by later afternoon, it started using perplexity.ai exclusively.

How do I get rid of perplexity.ai

Hi, new Firefox Win 11 user, new laptop, how do I enable main touchscreen gestures, swipe, pinch etc. All other apps, browsers work, so HW / drivers work. Can't find how on user forums, or in settings.