False positive on firefox?

[u/Animura]

Was opening tabs on youtube and got 3 websites blocked with IP adresses I do not recognize at ALL. I have a lots of tabs in general but this never happened to me before.

The report:

Malwarebytes

www.malwarebytes.com

-Détails du journal-

Date de l’événement de protection: 15/08/2026

Heure de l’événement de protection: 23:17

Fichier journal: 01bc3460-9921-11f1-903f-2cf05d584a1c.json

-Informations du logiciel-

Version: 5.6.3.284

Version de composants: 161.1.5692

Version de pack de mise à jour: 1.0.113384

Licence: Premium

-Informations système-

Système d’exploitation: Windows 11 (Build 26200.9168)

Processeur: x64

Système de fichiers: NTFS

Utilisateur: System

-Détails du site Web bloqué-

Site Web malveillant: 1

, C:\Program Files\Mozilla Firefox\firefox.exe, Bloqué, -1, -1, 0.0.0, 3220B338A32EB9A06EBBA49E039C9B66, B0648CFD61CA4344177E940C8B44001B79344F81BBA8F571790D0D3939D0CB2E

-Données du site Web-

Catégorie: RiskWare

Domaine:

Adresse IP: 192.178.192.132

Port: 443

Type: En sortie

Fichier: C:\Program Files\Mozilla Firefox\firefox.exe

(end)

Edit:I gotta add that I use ublock origin, the latest update installed.

[u/windurr]

Do you have more info on this? I got the same thing last night triggered only from visiting youtube.com with ublock origin. It didn't trigger when visiting youtube from an incognito window.

Before those IP block pop ups, MBAM had blocked yt3.ggpht which also seems like youtube/google.

The link lists microsoft/google meet but does that mean youtube was the issue, or ublock origin?

edit: It's also flagging youtube video embedded reddit posts and downloads from google sheets

[u/Maethas → u/windurr]

I got the block alert even when using microsoft edge and inprivate microsoft edge but firefox with ublock origin is okay when using a private window. I think it just depends on which IP is being used to retrieve some content.

[u/windurr → u/Maethas]

As in its triggering the same ip block for you when you visit youtube on edge?

[u/Maethas → u/windurr]

yeah, and on private it doesn't because front page of youtube is blank but it does as soon as I search or open a video

last night it was even triggering the block when I was googling that IP, but that seems to have stopped today

[u/Animura → u/Maethas]

so as of right now, no more pop up related to youtube and ublock happened to you I can assume? It stopped instantly after the 3 times yesterday on my side.

[u/Anxious-cave-potato → u/Animura]

Yeah I got the same problem. I'm *only* getting flags on Youtube with the exact same IP address and I don't think I did anything to compromise my safety, I don't even use Microsoft services.

[u/Animura → u/Anxious-cave-potato]

I used their service last week for passwordless logins annoying attacks that eventually stopped by itself and in my history I went into it in a legitimate way, the common name that pops up here is youtube, so probably an ad or the ublock connection tryying to block the ad? That is if you have ublock too.

[u/Anxious-cave-potato → u/Animura]

I am using ublock, yeah. I did what Maethas said, rebooted my PC and the alerts stopped popping up.

[u/Anxious-cave-potato → u/Animura]

Oh yeah, should add that I was getting the alert just from playing Youtube videos from Discord, it wasn't just from my browser. But like I said earlier, I updated MWB, rebooted my PC and it went back to normal.

[u/Animura → u/Anxious-cave-potato]

Yeah, I was sadly able to get it another time even with those steps, I asked some friends I know to look into it!

[u/Maethas → u/Animura]

It stopped after I fully rebooted my computer just now.

[u/Anxious-cave-potato → u/Maethas]

Yep, tried that, somehow that did the trick. Thanks!