Track down what is causing this ANNOYING popup from Avast

Avast Free Antivirus / Premium Security
1

This morning, every 5 minutes Avast is telling me it blocked an attempt to connect to a website for some H-game.

https://live.staticflickr.com/65535/49818339686_8812f12dcd_o.jpg
SlavemakerPopup by slickrcbd, on Flickr

I’m not trying to go anywhere near that site, and I ran a scan with both Avast and Malwarebytes. It says it is Firefox.
Has one of my addons been “updated” the way Stylish was “improved” and forced me to switch to Stylus?

Here is the “troubleshooting information”, can anybody help me figure out what is causing this incessant nagging?

Application Basics ------------------

Name: Firefox
Version: 75.0
Build ID: 20200403170909
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/75.0
OS: Windows_NT 10.0
Launcher Process: Disabled due to failure
Multiprocess Windows: 1/1 Enabled by default
Remote Processes: 11
Enterprise Policies: Active
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days

Firefox Features

Name: DoH Roll-Out
Version: 1.3.0
ID: doh-rollout@mozilla.org

Name: Firefox Screenshots
Version: 39.0.0
ID: screenshots@mozilla.org

Name: Form Autofill
Version: 1.0
ID: formautofill@mozilla.org

Name: Web Compat
Version: 9.0.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.1.0
ID: webcompat-reporter@mozilla.org

Remote Processes

Type: Web Content
Count: 8 / 8

Type: Extension
Count: 1

Type: Privileged About
Count: 1

Type: GPU
Count: 1

Extensions

Name: AdBlocker for YouTube™
Version: 0.3.2
Enabled: true
ID: jid1-q4sG8pYhq8KGHs@jetpack

Name: All Downloader Professional
Version: 1.98.2
Enabled: true
ID: alldownloader@link64

Name: Amazon.com
Version: 1.1
Enabled: true
ID: amazondotcom@search.mozilla.org

Name: Behind The Overlay
Version: 0.1.6
Enabled: true
ID: jid1-Y3WfE7td45aWDw@jetpack

Name: Bing
Version: 1.1
Enabled: true
ID: bing@search.mozilla.org

Name: Bookmark Manager and Viewer
Version: 0.2.6.1
Enabled: true
ID: {beb1b1c0-32b9-47d8-bbd1-f65bed4e7c22}

Name: Bookmark search plus 2
Version: 2.0.75
Enabled: true
ID: bookmarksearchplus2@aafn.org

Name: Copy PlainText
Version: 1.10
Enabled: true
ID: copyplaintext@eros.man

Name: DownThemAll!
Version: 4.2.6
Enabled: true
ID: {DDC359D1-844A-42a7-9AA1-88A850A938A8}

Name: DuckDuckGo
Version: 1.0
Enabled: true
ID: ddg@search.mozilla.org

Name: eBay
Version: 1.0
Enabled: true
ID: ebay@search.mozilla.org

Name: Feedbro
Version: 4.1.3
Enabled: true
ID: {a9c2ad37-e940-4892-8dce-cd73c6cbbc0c}

Name: Flash Video Downloader
Version: 6.3.14
Enabled: true
ID: ductloanphuok@gmail.com

Name: Font Finder
Version: 0.3.5
Enabled: true
ID: {a658a273-612e-489e-b4f1-5344e672f4f5}

Name: FVD Video Downloader
Version: 1.32
Enabled: true
ID: {f171ff98-4433-4de4-9976-d87525a80c45}

Name: GetGo Download Helper
Version: 1.3.4.275
Enabled: true
ID: dev@getgosoft.com

Name: Google
Version: 1.0
Enabled: true
ID: google@search.mozilla.org

Name: Google Analytics Blocker
Version: 1.2.1
Enabled: true
ID: {c7c3483c-0e96-45f4-8772-f84462cdc047}

Name: Google search link fix
Version: 1.6.9
Enabled: true
ID: jid0-XWJxt5VvCXkKzQK99PhZqAn7Xbg@jetpack

Name: google-no-tracking-url
Version: 3.0.0
Enabled: true
ID: jid1-zUrvDCat3xoDSQ@jetpack

Name: Greasemonkey
Version: 4.9
Enabled: true
ID: {e4a8a97b-f2ed-450b-b12d-ee082ba24781}

Name: Happy Right-Click
Version: 1.1.0
Enabled: true
ID: {dd10d63e-3096-4492-ab0e-5edcf4baf988}

Name: Make Google Images Great Again
Version: 0.2.0
Enabled: true
ID: {866b6dae-8de0-47d9-ac2e-9a99b5bdadef}

Name: PageZipper
Version: 1.5.1
Enabled: true
ID: pagezipper@printwhatyoulike.com

Name: Print Edit WE
Version: 26.1
Enabled: true
ID: printedit-we@DW-dev

Name: Private Video Downloader
Version: 1.0.6
Enabled: true
ID: {b9a672d6-0a2c-470e-9bed-1ca2e2a900c5}

Name: Re-Pagination
Version: 2019.10.19
Enabled: true
ID: repagination-fork-mathnerd314@github.com

Name: Rotate and Zoom Image
Version: 1.5
Enabled: true
ID: rotate-and-zoom-image@mikk.cz

Name: Simple YouTube to MP3/MP4 Converter
Version: 5.0.0
Enabled: true
ID: jid0-SQnwtgW1b8BsMB5PLV5WScEDWOjw@jetpack

Name: Social Disconnect Plus
Version: 0.1.3
Enabled: true
ID: jid0-oXwS1QcskGssFvIpk4lJs@jetpack

Name: Stylus
Version: 1.5.11
Enabled: true
ID: {7a7a4a92-a2a0-41d1-9fd7-1e92480d612d}

Name: Twitter
Version: 1.0
Enabled: true
ID: twitter@search.mozilla.org

Name: uBlock Origin
Version: 1.24.2
Enabled: true
ID: uBlock0@raymondhill.net

Name: Video Downloader Prime
Version: 0.2.4
Enabled: true
ID: jid1-i6dUGvCrz2WZu8@jetpack

Name: Video Downloader Pro
Version: 1.3.9
Enabled: true
ID: @video_downloader_pro

Name: Video Downloader professional
Version: 1.99.3
Enabled: true
ID: ffext_basicvideoext@startpage24

Name: Video DownloadHelper
Version: 7.3.9
Enabled: true
ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d}

Name: Webmail Ad Blocker
Version: 5.3.2
Enabled: true
ID: gmailnoads@mywebber.com

Name: Wikipedia (en)
Version: 1.0
Enabled: true
ID: wikipedia@search.mozilla.org

Name: YesScript2
Version: 4.3
Enabled: true
ID: yesscript202@example.org

Name: Zoom Page WE
Version: 17.2
Enabled: true
ID: zoompage-we@DW-dev

Name: Absolute Enable Right Click & Copy
Version: 1.3.8
Enabled: false
ID: {9350bc42-47fb-4598-ae0f-825e3dd9ceba}

Name: Adblock Plus - free ad blocker
Version: 3.8.4
Enabled: false
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Adblock Plus Pop-up Addon
Version: 0.9.2.1-signed.1-signed
Enabled: false
ID: adblockpopups@jessehakanen.net

Name: Add Bookmark Here ²
Version: 52.0.20170311
Enabled: false
ID: abhere2@moztw.org

Name: AdF.ly Skipper ★WORKING: 9/13/2017★
Version: 8.1.0
Enabled: false
ID: jid0-hyjN250ZzTOOX3evFwwAQBxE4ik@jetpack

Name: Avast Online Security
Version: 20.1.480
Enabled: false
ID: wrc@avast.com

Name: Avast SafePrice | Comparison, deals, coupons
Version: 20.1.1611
Enabled: false
ID: sp@avast.com

Name: Bing Results Remover
Version: 0.2.1.1-signed.1-signed
Enabled: false
ID: jid0-pOY1TvgBFb7AcZ24qBCG7jMOJcU@jetpack

Name: Bookmark Detector
Version: 0.1.2
Enabled: false
ID: {22b2ea85-7981-4bca-8245-54cb719a43a6}

Name: Bookmark Dupes
Version: 6.4
Enabled: false
ID: bookmarkdupes@martin-vaeth.org

Name: Bookmarks clean up
Version: 0.0.8
Enabled: false
ID: {a1087d5d-d793-445a-b988-088b1d86f2a6}

Name: Bookmarks Organizer
Version: 3.1.0
Enabled: false
ID: bookmarksorganizer@agenedia.com

Name: Center Pages
Version: 1.1.0
Enabled: false
ID: {2371e3f5-9fde-4ef2-83dc-f78557fe34f4}

Name: Classic Theme Restorer
Version: 1.7.3.4
Enabled: false
ID: ClassicThemeRestorer@ArisT2Noia4dev

Name: Copy Plain Text 2
Version: 1.6
Enabled: false
ID: copyplaintext@teo.pl

Name: Custom Tab Width
Version: 1.0.1.1-signed.1-signed
Enabled: false
ID: tab-width@design-noir.de

Name: Don’t track me Google
Version: 4.22
Enabled: false
ID: dont-track-me-google@robwu.nl

Name: Download Links
Version: 4.0
Enabled: false
ID: {7b15cfea-42ba-4409-9dd9-00e954f9a9ac}

Name: Download Manager (S3)
Version: 5.12
Enabled: false
ID: s3download@statusbar

Name: Download Star
Version: 2.0.5
Enabled: false
ID: {8cc0b007-e40b-46e8-9e50-e3bf021c94ab}

Name: DownThemAll! AntiContainer
Version: 1.5
Enabled: false
ID: anticontainer@downthemall.net

Name: Dr. Body Narrow
Version: 1.0.9.1-signed.1-signed
Enabled: false
ID: dr_body_narrow-extension@skipitnow.org

Name: Element Hiding Helper for Adblock Plus
Version: 1.4
Enabled: false
ID: elemhidehelper@adblockplus.org

Name: Enhancer for YouTube™
Version: 2.0.101
Enabled: false
ID: enhancerforyoutube@maximerf.addons.mozilla.org

Name: Exif Viewer
Version: 3.7.5
Enabled: false
ID: exif_viewer@mozilla.doslash.org

Name: FicLab
Version: 0.6.53
Enabled: false
ID: ficlab-helper@mozilla.org

Name: Fit To Width
Version: 0.5.1
Enabled: false
ID: @fittowidth

Name: Flash Killer
Version: 1.3.1-signed.1-let-fixed.1-signed
Enabled: false
ID: flashkiller@joli.clic

Name: FlashStopper
Version: 2.4.5
Enabled: false
ID: flashstopper@byo.co.il

Name: Forecastfox (fix version)
Version: 4.25
Enabled: false
ID: forecastfox@s3_fix_version

Name: Get Archive
Version: 4.0.0
Enabled: false
ID: getarchive@hugsmile.eu

Name: Go Parent Folder
Version: 2.9.1.1-signed.1-signed
Enabled: false
ID: goParentFolder@alice

Name: Google Translator for Firefox
Version: 3.0.3.3
Enabled: false
ID: translator@zoli.bod

Name: gui:config
Version: 1.10.3
Enabled: false
ID: guiconfig@slosd.net

Name: Hide Add-on-Bar-Close-Button
Version: 0.3.0.1-signed.1-signed
Enabled: false
ID: hide-add-on-bar-close-button@mauricioid.com

Name: Image Zoom
Version: 0.6.3.1-signed.1-signed
Enabled: false
ID: {1A2D0EC4-75F5-4c91-89C4-3656F6E44B68}

Name: Magic Actions for YouTube™
Version: 7.9.1.0
Enabled: false
ID: jid0-UVAeBCfd34Kk5usS8A1CBiobvM8@jetpack

Name: Memory Restart
Version: 1.18.1-signed.1-signed
Enabled: false
ID: memoryrestart@teamextension.com

Name: NextVid Stopper for YouTube
Version: 1.1.1-signed.1-signed
Enabled: false
ID: jid1-8tHTvv1Wsu98MQ@jetpack

Name: No Small Text
Version: 4.9
Enabled: false
ID: nosmalltext@pjs.nl

Name: NoScript
Version: 11.0.25
Enabled: false
ID: {73a6fe31-595d-460b-a920-fcc0f8843232}

Name: Nuke Anything
Version: 2.4
Enabled: false
ID: {1ced4832-f06e-413f-aa14-9eb63ad40ace}

Name: Open in Wayback Machine
Version: 2.0.2
Enabled: false
ID: jid1-D3J3CDl5LFaX5A@jetpack

Name: Print Edit
Version: 18.4
Enabled: false
ID: printedit@DW-dev

Name: Privacy Settings
Version: 0.3.7
Enabled: false
ID: jid1-CKHySAadH4nL6Q@jetpack

Name: QuickJava
Version: 2.1.2
Enabled: false
ID: {E6C1199F-E687-42da-8C24-E7770CC3AE66}

Name: Re-Pagination
Version: 2016.08.03
Enabled: false
ID: {6072cb90-a0bd-11da-a746-0800200c9a66}

Name: Redirector
Version: 3.5.3
Enabled: false
ID: redirector@einaregilsson.com

Name: RightToClick
Version: 2.9.6
Enabled: false
ID: {cd617375-6743-4ee8-bac4-fbf10f35729e}

Name: S3.Translator
Version: 6.19
Enabled: false
ID: s3google@translator

Name: Show Parent Folder
Version: 2.1.1
Enabled: false
ID: showParentFolder@alice

Name: Smart RSS
Version: 2.15.1
Enabled: false
ID: smart-rss@mozilla.firefox

Name: SuperStop
Version: 0.3
Enabled: false
ID: superstop@gavinsharp.com

Name: The Addon Bar (restored)
Version: 3.2.9-compat-fixed-4
Enabled: false
ID: the-addon-bar@GeekInTraining-GiT

Name: Toggle Word Wrap
Version: 1.10
Enabled: false
ID: {cafe3945-058e-47e3-87f8-75bc120b9638}

Name: UnPlug
Version: 2.059
Enabled: false
ID: unplug@compunach

Name: User-Agent Switcher
Version: 1.3.31
Enabled: false
ID: user-agent-switcher@ninetailed.ninja

Name: User-Agent Switcher and Manager
Version: 0.3.5
Enabled: false
ID: {a6c4a591-f1b2-4f03-b3ff-767e5bedf4e7}

Name: View Frames
Version: 1.0.1-signed.1-signed
Enabled: false
ID: viewframes@queze.net

Name: Wrap Switcher
Version: 2.0.1.1-signed.1-signed
Enabled: false
ID: {5ed50391-94bf-4c2d-97e5-1ff557cfdd40}

Name: YesScript
Version: 2.2
Enabled: false
ID: yesscript@userstyles.org

Name: YouTube without DASH Playback
Version: 0.1.2
Enabled: false
ID: @iywdplayback

Name: YouTube™ No Buffer (Stop Auto-playing)
Version: 0.3.0.1
Enabled: false
ID: {551f032e-353d-4d10-b186-b0026b1a666d}

Name: Zoom
Version: 2.5.3.0
Enabled: false
ID: zoom@stefanvd.net

Name: Zoomr
Version: 1.3
Enabled: false
ID: Zoomr@jetpack

Security Software

Type: Avast Antivirus

Type:

Type: Windows Firewall

2

It may be a website that appears as a suggestion, when you’re typing on the address bar of your browser. Sometimes that’s enough to trigger detention.

3

Strange that the Avast alert window is indicating Thunderbird, rather than Firefox then.

Are you using webmail connections in Thunderbird, the detection is by the web shield rather than the mail shield ?

Or do you have any news feeds in thunderbird for slavemaker3.blogspot.com that would be displayed in your browser, etc. ?
Do you have any knowledge or connection with this sub-domain slavemaker3.blogspot.com ?

Whilst that site doesn’t appear to be blacklisted (avast not included in the checks) it is a medium security risk.
https://sitecheck.sucuri.net/results/slavemaker3.blogspot.com