Hi Didee,

How are you trying to block senders?

I do it the usual way - that is, I right-click on the email I want to block - choose "Block" - then choose "Block sender". The following message comes up in a dialog box - "Block .....?" This message will be deleted and all future messages from ....... will not come to your mailbox." There are two buttons to click - OK and Cancel. When I click OK, the message "We couldn't block this sender. Please try again later" comes up.

This happens for every email I want to block - all are from different email addresses and have no relation to each other. All are junk, spam and/or phishing attempts.

I am almost certain that Thunderbird offers no way to block senders.

https://support.mozilla.org/en-US/kb/blocking-sender

That drop-down menu option does not appear in my installation of Thunderbird. Are you using an add-on to perform this function? If so, maybe the add-on needs to be updated for your version of Thunderbird. Was Thunderbird updated on your computer recently?

I am using Firefox, not Thunderbird.

Have I posted my request in the wrong place?

Yes. There is a link to the Firefox community forum at the top of this page.

But is your problem relates to webmail, not Firefox?

My browser is Firefox which I use for my Hotmail account.

So your question is really about Hotmail, which provides the blocking function, not Firefox.

I'm sorry - you're right. It is Hotmail that provides the blocking function.

Thanks for trying to help!

I have transferred this topic to the Firefox community despite my belief that can not help with this issue. I suggest you raise a topic with the outlook support folk.

See https://support.microsoft.com/en-au/office/how-to-get-support-for-outlook-com-f5482a98-616c-4d44-b7c5-8aaaadf5c11a

Thanks Matt! I'll do that.