How do I switch off Thunderbird Calendar, so I can use Apple iCal instead?

I don't wish to use the calendar that comes with Thunderbird, but instead continuing with my Macintosh iCal. 1) How do I switch off the Thunderbird calendar function? 2)… (funda kabanzi)

I don't wish to use the calendar that comes with Thunderbird, but instead continuing with my Macintosh iCal.

1) How do I switch off the Thunderbird calendar function? 2) How do I get the calendar invitations sent to me as an ICS file attachments, that I can open in Mac iCal. Just like in Airmail and in Microsoft Outlook.

Jonas Möller Nielsen Sweden

Open 20

Cannot log in to X.com

Content Security policy blocks essential scripts no matter what I do. It's new Firefox installation, Troubleshoot mode, Enhanced tracking disabled, I'm not on VPN, can lo… (funda kabanzi)

Content Security policy blocks essential scripts no matter what I do.

It's new Firefox installation, Troubleshoot mode, Enhanced tracking disabled, I'm not on VPN, can log into X.com in another browser just fine.

It's the reason #1 I don't use Firefox. I thought the issue would be fixed but it has been like this for long time.

Yet whatever I do, whatever I turn off this pops up:

Content-Security-Policy: The page’s settings blocked the loading of a resource (default-src) at https://abs.twimg.com/responsive-web/client-web/bundle.Conversation.721fc4aa.js because it violates the following directive: “default-src 'self'”

The screenshot is from Zen, but it uses Firefox and the issue is the same in Firefox.

Open 12 1 18

no incoming e-mails:

Hello, I can't receive any of my e-mails. I can send e-mails out now. Plus I can put in my password to log into my e-mail. This has been a headache for me, I have been w… (funda kabanzi)

Hello,

I can't receive any of my e-mails. I can send e-mails out now. Plus I can put in my password to log into my e-mail.  This has been a headache for me, I have been with Thunder Bird for years.

I also get a boxes that says : Unable to write the email to the mailbox. It says to make sure the file system allows me to write privileges, and I have enough disk space to copy the mailbox. I have enough space on my computer system and all. Another box that says my e-mail is being processed. Please wait until processing is complete to get messages. I did e-mail you yesterday on these issues. As I said I can e-mail messages out now also log into my e-mail with my password. Thanks, Chris

Open 9

Problems connecting to multiple websites in Firefox

Hello, for some time now I've been experiencing a number of problems with the latest Firefox updates. Today I have version 152.0 (64-bit), which was updated again this mo… (funda kabanzi)

Hello, for some time now I've been experiencing a number of problems with the latest Firefox updates.

Today I have version 152.0 (64-bit), which was updated again this morning. I restarted my mid-2015 MacBook Pro Retina. I have fiber optic internet, which is very high speed.

I've been using Firefox for over two years.

1) For the past eight days, I've been experiencing many problems with Google Meet; I get freezes, audio and video dropouts...

2) For the past three days, I haven't been able to log in to this website: https://creators.spotify.com/pod/login

3) For about ten days, I've been having trouble logging into my Stripe dashboard, with significant slowness and/or crashes.

4) In Notion, I'm also experiencing significant slowness, with pages taking a long time to load.

In short, several problems that I didn't have at all a month ago or before.

But now it's a nightmare.

I don't have any of these problems in Safari or Google Chrome.

So what's going on in Firefox?

Why is it such a hassle?

Thanks for your feedback.

Open 9

Recently Firefox was updated in Debian Linux now it is a pain

Recently Firefox was updated in Debian Linux now it is a pain Whenever I want to go to a website I get a lot of results almost all the time, see attachment the version n… (funda kabanzi)

Recently Firefox was updated in Debian Linux now it is a pain Whenever I want to go to a website I get a lot of results almost all the time, see attachment the version now is 151.0.3 (aarch64) I ask some other group, I got never got help from one member just abuse, and screen shots that are wrong to my Firefox is.

Another person gave very good description, I was able to follow it and make a change, but it did not fix the problem

Open 8

Tbird was not working. Downloaded upgrade verbatim off of website. lost all files, contacts, archives, etc.

My Tbird email was not working, so I tried a "clean re-install" as recommended on your website. I lost everything, contacts, archive, pics, email.. .years worth. Please… (funda kabanzi)

My Tbird email was not working, so I tried a "clean re-install" as recommended on your website. I lost everything, contacts, archive, pics, email.. .years worth. Please tell me I can retrieve them.

Thank you,

Pat
Open 8

Connetion error, can't recieve emails

This just all the sudden started happening for my charter email account, I haven't changed any settings, the font turned red and can't receive the emails. I have mail was… (funda kabanzi)

This just all the sudden started happening for my charter email account, I haven't changed any settings, the font turned red and can't receive the emails. I have mail washer and see the emails, they not from anyone shady. got a couple screen shots. Thanks

Open 8 9

Password Manager (about:logins) is completely blank.

Hi, I’m experiencing the following issue: When I open Password Manager (about:logins), the page is completely blank. This problem started about three months ago, after I … (funda kabanzi)

Hi,

I’m experiencing the following issue:

When I open Password Manager (about:logins), the page is completely blank.

This problem started about three months ago, after I updated Firefox to a newer version.

Currently, on the about:logins page, I can export all my accounts and passwords as a CSV file (so the data clearly exists), but nothing is displayed on the page itself.

I also tried importing the same CSV file (exported from about:logins) back into Firefox. After importing, all accounts and passwords appear in the left panel. However, when I click on any item, the right panel is still blank. If I close the page and open about:logins again, the items still do not load.

My current Firefox version is 147.0.

How can I solve this problem?

Thanks!

Open 7 313

With only one tab open Firefox memory is peaking at 86GB and crashing my Mac

I cannot use Firefox without it blowing up my memory to 86GB used in Activity Monitor. I've cleared my cache, closed all my tabs and bookmarked them. I have a Macbook Air… (funda kabanzi)

I cannot use Firefox without it blowing up my memory to 86GB used in Activity Monitor. I've cleared my cache, closed all my tabs and bookmarked them. I have a Macbook Air M1 2020. I've tried restarting and am definitely using the current version of Firefox. I also updated to the latest OS Tahoe 26.5 to see if that helped. What should I do next please?!

Open 7 18

Why am I getting Error Filter action failed: "Move failed" with error code=0x8000FFFF while attempting: Applied filter "Blocked Sender List" .

[6/12/26, 10:49:22 PM GMT-4] Applied filter "Blocked Sender List" to message from The Home Depot® Consumer Credit Card <citi@info15.citi.com> - James, Don’t forget … (funda kabanzi)

[6/12/26, 10:49:22 PM GMT-4] Applied filter "Blocked Sender List" to message from The Home Depot® Consumer Credit Card <citi@info15.citi.com> - James, Don’t forget to use this special offer to get your Summer projects going! 🌼🌺 at 6/12/26, 10:02:27 PM GMT-4 deleted

[6/12/26, 10:49:22 PM GMT-4] Filter action failed: "Move failed" with error code=0x8000FFFF while attempting: Applied filter "Blocked Sender List" to message from The Home Depot® Consumer Credit Card <citi@info15.citi.com> - James, Don’t forget to use this special offer to get your Summer projects going! 🌼🌺 at 6/12/26, 10:02:27 PM GMT-4 deleted

The sent message is deleted but I get Filter action Failed.

Open 6

autofill credit card fails

When there is a field to fill in my credit card info, the info will appear and let me select the CC I want to use but when I move away from the field the CC info goes awa… (funda kabanzi)

When there is a field to fill in my credit card info, the info will appear and let me select the CC I want to use but when I move away from the field the CC info goes away.

Open 6 231

please ask Thunderbird to stop making a tab on my taskbar every time I open an email

Please ask Thunderbird to stop making a tab on my taskbar every time I open an email. I have to close each one individually, and I never asked for these to be shown, and … (funda kabanzi)

Please ask Thunderbird to stop making a tab on my taskbar every time I open an email. I have to close each one individually, and I never asked for these to be shown, and I don't need them shown. This is a tedious extra chore. I already have access to emails that I receive in my in box. It shows the history. I don't need any other index to them. Do you know how to stop making any other such tab or index? If not, please pass this on, and please don't say that you can't pass on this request. Someone decided to make these tabs show up on my screen and task bar, and to require me to close them by clicking on each little red X mark. I should be able to make contact with whoever makes these decisions and writes these programs, and to provide feedback and suggestions to them.

Open 6

Facebook Really Slow on Firefox 151.03

Hi Everyone, I've been having this problem for a wee while when I'm browsing facebook (which works better in Chrome) the site on firefox and as well as messenger is reall… (funda kabanzi)

Hi Everyone,

I've been having this problem for a wee while when I'm browsing facebook (which works better in Chrome) the site on firefox and as well as messenger is really laggy and I'm wondering if there is a hidden setting that I should change to improve this?

I only have adblock addon installed and I cleaned out the history and browser cookies ect but the problem still remains.

Any ideas? Thanks Rob

Open 5 9

White lines appear on some images when viewing pdf documents with Firefox pdf viewer

When viewing pdf files created from MS Word (.docx) documents and sent to me I see white lines across some images but not all. This happens with Firefox on Windows 11 and… (funda kabanzi)

When viewing pdf files created from MS Word (.docx) documents and sent to me I see white lines across some images but not all. This happens with Firefox on Windows 11 and linux mint (various versions). It is present on the images from the file as received and after uploading to a website. The images are OK if viewed using Opera or other browsers but the same problem is present on Thunderbird. The file below has the problem on 2 images when viewed on Firefox. https://www.kass.org.uk/Documents/NewsletterFrom251114/20260304%20March%20Newsletter.pdf I have caused the writer of the article a lot of trouble because I blamed her file which seems to be OK. Can you help? Thanks Brian

Open 4

Unable to receive and send emails.

Receive popup message: The certificate for mobile.charter.net does not come from a trusted source. In trying to send email, popup message: Sending the email failed. Pe… (funda kabanzi)

Receive popup message: The certificate for mobile.charter.net does not come from a trusted source. In trying to send email, popup message: Sending the email failed. Peer's Certificate issuer is not recognized. The configuration related to mobile.charter.net must be corrected. Then it wants me to Add Security, Get Certificate.

Open 4 27

Missing emails for 3 days after being hacked.

I was hacked on 8th and received no emails until 11th. I think there may have been a couple of important emails but I can't find a way to retrieve them. Can you help plea… (funda kabanzi)

I was hacked on 8th and received no emails until 11th. I think there may have been a couple of important emails but I can't find a way to retrieve them. Can you help please.

Open 4