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 … (read more)

[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

Setting up a new (t-online.de) account: what are the port and authentication settings?

I am trying to set up my t-online.de account on Thunderbird, so far without success. A message appears: Thunderbird failed to find the settings for your email account. I… (read more)

I am trying to set up my t-online.de account on Thunderbird, so far without success. A message appears: Thunderbird failed to find the settings for your email account. I don't know where I am going wrong.

Open 2

No spellcheck for german, firefox in english, ger dictonary downloaded

Hello, as you can see in the image I can't select German as spellcheck language even though I have installed the German dictionary. My Win OS and the browser use English… (read more)

Hello,

as you can see in the image I can't select German as spellcheck language even though I have installed the German dictionary. My Win OS and the browser use English but I want German as spellcheck as well.


What I am missing?

Thanks

Open 1

I have a new computer. All my previous bookmark folders (40) now appear on the bookmark toolbar. How do I put them where they are supposed to be?

On my old computer, I used the toolbar to take me to my main programmes like Ebay, Facebook, my log-in page for my bank etc. Now there is no room because it is filled up … (read more)

On my old computer, I used the toolbar to take me to my main programmes like Ebay, Facebook, my log-in page for my bank etc. Now there is no room because it is filled up with bookmark folders.

Open

First time user. Setting up homepage. Can't get rid of the Amazon tile. Can't delete it. Turned of sponsored links in settings and it's still there.

First time user. Setting up homepage. Can't get rid of the Amazon tile. Clicking the 3 dots only gives option to pin or dismiss. Clicking dismiss does not remove it. I… (read more)

First time user. Setting up homepage. Can't get rid of the Amazon tile. Clicking the 3 dots only gives option to pin or dismiss. Clicking dismiss does not remove it. I have disabled Firefox sponsored shortcuts AND stories, shut down and restarted the computer twice and it is still there. I want it gone please help.

Open 1

please direct me to your user guide. I've looked all over and don't see anything close.

None of your "topics" addresses my issue at all. Where is your user manual? I'm trying to figure out how your "retention" works. Also how to get a message filter to run o… (read more)

None of your "topics" addresses my issue at all. Where is your user manual? I'm trying to figure out how your "retention" works. Also how to get a message filter to run on a specific folder daily.

Thanks, Saroj Gilbert

Open 3 27

Windows ExtensionSettings registry key takes priority over ExtensionSettings REG_SZ/REG_MULTI_SZ

We are managing Firefox settings using Intune via Imported ADMX templates. We are managing Extension Settings via 'Extension Management (JSON on one line)' which works fi… (read more)

We are managing Firefox settings using Intune via Imported ADMX templates.

We are managing Extension Settings via 'Extension Management (JSON on one line)' which works fine for our force installs, force removals etc.

We have noticed that some users have installed 3rd party extensions which create the ExtensionSettings key in the registry with the 3rd party extension details.

The issue we see if when ExtensionSettings exists as a REG_SZ or REG_MULTI_SZ under `HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox` it is then ignored if the `HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\Firefox\ExtensionSettings` key exists.

Is there a setting we can use to have these settings merged by Firefox or have the REG_SZ/REG_MULTI_SZ take priority or is the only way to ensure enterprise policy continues to work we need to migrate our extension settings into the key rather than string?

Thanks!

Open

Why is spam from email addesses that are not in my address book, are still getting into my inbox.

A category (Daily Brain something) of emails that are clearly spam (you even think they are spam) are landing in my Inbox every day. I have my email set to not allow emai… (read more)

A category (Daily Brain something) of emails that are clearly spam (you even think they are spam) are landing in my Inbox every day. I have my email set to not allow emails from any addresses that aren't in my book. If I follow their 'unsubscribe' link, I just get more of them. This is the latest one: ar849137@ocotille.com with a Reply To address of: 3527_rep_Y2pnZGVzaWduc0BlYXJ0aGxpbmsubmV0@ocotille.com Every one is different. Why are these getting through? Thanks Cary

Open 5 27

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… (read more)

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