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How do I import *.ICS file in a reasonable amount of time. I have appointments in an ics file of less than 1 K in size, typically 700 - 800 bytes in size and they take HOURS to import and do not connect properly then to allow editing the appointment. This is from Baylor Scott and White, a major hospital system in Texas. If there is a problem with the imported file structure, please point me to the correct file structure. I like Thunderbird, but this part of the calendar is very frustrating. Clarence

Hi all,

I am new to a Mac (1 year now) and am trying to make Thunderbird work for me as I have not been happy with other mail clients. I am struggling through a few things.

I like to navigate by keyboard if possible. In the Calendar tab using a month or multi week view, the "[" and "]" move month by month or week by week in multi-week view. How do I move to the next day or two using the keyboard?

A big thank you to all who reply, and sorry if this question has been answered many times before (I did not find the answer in the keyboard FAQ). --Tim

None of the topics suggested fit. I'm having trouble with getting extensions on toolbars. In the customize toolbars window there's a toolbar at the very top of the page that starts with mail, calendar, addressbook, etc. Just for example, the Google Calendar and Outlook Calendar extensions are in that toolbar, but I can't move them to another toolbar and that toolbar disappears when I close the Customize page (either way) and I haven't been able to find a way to get it displayed in other places. That toolbar is very similar to the toolbar that appears on the left side of the Thunderbird window, but that one doesn't include the extra extension buttons that I mentioned above.

Some people in various places have suggested that customizing Thunderbird toolbars is done the same way as in Firefox. But I haven't been able to find a puzzle piece icon anywhere.

By the way, I used to be able to add more toolbars, which I found to be an attractive concept, although that implementation didn't always work so well.

We need to add customization to the bottom panel located under the search bar, as well as the ability to set any wallpaper on the home screen and add a black AMOLED theme for the browser

ho appena inviato un post, replica ad una vostra risposta... purtroppo ho concluso con il button "solved the problem" ... per favore, ho giusto ri-raccontato il guaio, non è per nulla solved... non mollatemi, grazie. Giorgio Chiantore, 10015 Ivrea.

I tried it, it loads through EDGE, but through yours, if I enter it into the search, it loads at 70%, but the page still seems to work, albeit slowly. I didn’t have such problems with EDGE

Good afternoon, Since yesterday, I have been having a problem where new messages can no longer be previewed or opened. Emails can be sent, but they do not appear in the sent items folder. Everything works fine on my Samsung smartphone with the Samsung app.

Kind regards and many thanks, Marcel

My Outlook account moves what it thinks are spam/marketing messages into a "Junk" folder. Sometimes there are important messages here that I must mark as "Not Junk" so that I can continue to receive new messages from this sender in my InBox. I cannot map this Junk folder into Thunderbird even after I go through the steps and checkbox this folder to be synchronized. It does not appear in the left-side "All Folders" section.

Many solutions suggest that I make changes in "Settings\Privacy & Security\Junk" section. This does not exist. There, however, is a "Spam" section. Is this the same functionality?

Further, under "Accounts\Spam Settings\" there is a "Destination and Retention" section. There is no "Junk" folder available under "Other".

Does anyone else have problems linking server-side Junk folders into Thunderbird?

Thank you in advance for taking the time if you replied, Tim

ps. I've googled this extensively, and all the presented "solutions" are not accurate as the Thunderbird "junk" options they refer no longer exist. Has there been recent UX changes, and this is now a lingering bug?

Hello, can someone please fix this e-mail address please & thank you.

Following the instructions provided at this web page: https://developer.mozilla.org/en-US/docs/MDN/Community/Community_Participation_Guidelines I e-mailed a code of conduct violation report to the provided email address, mdn-cpg-report@mozilla.com

Actual results:

I immediately received the following e-mail reply, telling me in effect that my e-mail could not be delivered:

Subject: Delivery Status Notification (Failure) Date: Sun, 15 Feb 2026 21:34:30 -0800 (PST) From: Mail Delivery Subsystem <mailer-daemon@googlemail.com> To: [redacted]

Hello [redacted],

We're writing to let you know that the group you tried to contact (mdn-cpg-report) may not exist, or you may not have permission to post messages to the group. A few more details on why you weren't able to post:

You might have spelled or formatted the group name incorrectly. The owner of the group may have removed this group. You may need to join the group before receiving permission to post. This group may not be open to posting. If you have questions related to this or any other Google Group, visit the Help Center at https://support.google.com/a/mozilla.com/bin/topic.py?topic=25838.

Thanks,

mozilla.com admins

[headers, etc redacted]

Expected results:

I expected instead to receive a reply telling me that my e-mail had been successfully received.

Hi. So I've been having this issue where, I search something in google, it searches what I asked it to. Then I search again and it finds what I asked it to. The third time if I search again it'll go back to the first thing I tried to search as if i just pressed BACK twice. Something similar happens if I search for something, and then if I search the second thing and tap on the website and then press BACK, it'll go back to the first Google result I ssearched. It's been a few weeks this has been happening and the only thing that'll TEMPORARILY fix it is if I close firefox. If you need any more information I'd be happy to help you help me. Thank you!

I am really in a panic: Using ubuntu 22.04 and Thunderbird 140.7.1.esr For my main account I keep some 40 sub-folders and sub-sub-folders. All but the most recent mails in my sub folders are gone, something like 4 years of email. I asked chatGPT for help and found inside the /mail folder that most of the files with the names of my sub folders with no extension have 0 kb. I don't use IMAPS because I wanted my mails on my computer so I use only POP. :-( The interesting thing is that this only happend to my main account. I have 6 more accounts in Thunderbird and they seem to be fine, at least for now. Thank you for any help. Kind regards Frank

When the Global Privacy Control request is checked (https://support.mozilla.org/en-US/kb/global-privacy-control?as=u&utm_source=inproduct) a persistent bubble appears at the bottom of the page indicating the request has been accepted. The bubble is annoying. Is there a way to continue to use this feature without the bubble appearing?

Trying to send mailmerge. Thunderbird version 147.0.2 (64-bit) I have sent a mailmerge from thunderbird before, so it should work. I have my CSV ready, and I type the email draft. I click the mailmerge icon, and fill out the mail merge dialogue box. After I fill out Mail Merge dialog box and click send, a blank dialog box opens, then I can't do anything (my email draft is frozen)tried sending, and saving, or pressing load (all options highlighted in screenshot). See also screenshot of blank dialogue box and frozen message. I tried closing the blank dialogue box, but the mailmerge is not sent, and after that, I can create a new message, but the mail merge option is greyed out, so I cannot select it. So I shut down Thunderbird and restart, then I can click the mail mergeicon,but same problem,I only get as far as the blank dialogue box. Thank you so much for your help