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Preferences says Facebook Container "requires container tabs", but Facebook Container seems to be working

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General Preferences seems to believe that I don't have container tabs enabled. It says that Facebook Container "requires container tabs" and suggests I disable it. (See first image). However, the add-on seems to be working - the tab has a black underline (see second image)

I only noticed this message today, so I have no idea how long it's been around. I've tried many things, including

 - making sure Firefox is up-to-date
 - restarting Firefox (many times, including in Safe Mode)
 - removing and reinstalling Facebook Container
 - disabling all add-ons except Facebook Container
 - closing and re-opening Preferences after each and every change

I even installed a system update and re-started my computer.

I'd appreciate all and any help.

Thanks

General Preferences seems to believe that I don't have container tabs enabled. It says that Facebook Container "requires container tabs" and suggests I disable it. (See first image). However, the add-on seems to be working - the tab has a black underline (see second image) I only noticed this message today, so I have no idea how long it's been around. I've tried many things, including - making sure Firefox is up-to-date - restarting Firefox (many times, including in Safe Mode) - removing and reinstalling Facebook Container - disabling all add-ons except Facebook Container - closing and re-opening Preferences after each and every change I even installed a system update and re-started my computer. I'd appreciate all and any help. Thanks
Attached screenshots

Modified by Amerie

Quote

Additional System Details

Installed Plug-ins

Facebook Container and Firefox Multi-Account Containers are all I have enabled.

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Firefox/68.0

More Information

Application Basics
------------------
Name: Firefox
Version: 70.0.1
Build ID: 20191030021342
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/20100101 Firefox/68.0
OS: Darwin 17.7.0
Multiprocess Windows: 2/2 Enabled by default
Remote Processes: 7
Enterprise Policies: Inactive
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: 1.0.4
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: 6.2.0
ID: webcompat@mozilla.org
Name: WebCompat Reporter
Version: 1.1.0
ID: webcompat-reporter@mozilla.org
Remote Processes
----------------
Type: Web Content
Count: 6 / 8
Type: Extension
Count: 1
Extensions
----------
Name: Amazon.com
Version: 1.1
Enabled: true
ID: amazondotcom@search.mozilla.org
Name: Bing
Version: 1.0
Enabled: true
ID: bing@search.mozilla.org
Name: DuckDuckGo
Version: 1.0
Enabled: true
ID: ddg@search.mozilla.org
Name: eBay
Version: 1.0
Enabled: true
ID: ebay@search.mozilla.org
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Version: 2.0.3
Enabled: true
ID: @contain-facebook
Name: Firefox Multi-Account Containers
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Version: 1.0
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ID: google@search.mozilla.org
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ID: wikipedia@search.mozilla.org
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ID: bdtbe@bitdefender.com
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Enabled: false
ID: CanvasBlocker@kkapsner.de
Name: F.B Purity - Cleans up Facebook (WX)
Version: 29.1.8.0
Enabled: false
ID: fbpElectroWebExt@fbpurity.com
Name: Facebook Container NewAlexandria
Version: 2.2
Enabled: false
ID: @contain-facebook-newalexandria
Name: FoxyTab
Version: 2.15
Enabled: false
ID: foxytab@eros.man
Name: Ghostery – Privacy Ad Blocker
Version: 8.4.2
Enabled: false
ID: firefox@ghostery.com
Name: HTTPS Everywhere
Version: 2019.6.27
Enabled: false
ID: https-everywhere@eff.org
Name: Nimbus Screen Capture: Screenshots, Annotate
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Enabled: false
ID: nimbusscreencaptureff@everhelper.me
Name: OneTab
Version: 1.29
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ID: extension@one-tab.com
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Enabled: false
ID: {20fc2e06-e3e4-4b2b-812b-ab431220cada}
Name: TrafficLight
Version: 3.0.6
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ID: trafficlight@bitdefender.com
Name: Tree Style Tab
Version: 3.2.4
Enabled: false
ID: treestyletab@piro.sakura.ne.jp
Name: uBlock Origin
Version: 1.23.0
Enabled: false
ID: uBlock0@raymondhill.net
Graphics
--------
Features
Compositing: OpenGL
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info: -
WebGL 1 Driver Renderer: WebGL is currently disabled.
WebGL 1 Driver Version: -
WebGL 1 Driver Extensions: -
WebGL 1 Extensions: -
WebGL 2 Driver WSI Info: -
WebGL 2 Driver Renderer: WebGL is currently disabled.
WebGL 2 Driver Version: -
WebGL 2 Driver Extensions: -
WebGL 2 Extensions: -
Uses Tiling: true
Uses Tiling (Content): true
Off Main Thread Painting Enabled: true
Off Main Thread Painting Worker Count: 3
Target Frame Rate: 60
GPU #1
Active: Yes
Vendor ID: 0x8086
Device ID: 0x1926
Diagnostics
AzureCanvasBackend: skia
AzureContentBackend: skia
AzureFallbackCanvasBackend: none
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Decision Log
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
blacklisted by env: No qualified hardware
Media
-----
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Max Channels: 2
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Places Database
---------------
JavaScript
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Accessibility
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NSPR
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NSS
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Sandbox
-------
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Internationalization & Localization
-----------------------------------
Application Settings
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Regional Preferences: ["en-US"]
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Operating System
System Locales: ["en-US"]
Regional Preferences: ["en-US"]

cor-el
  • Top 10 Contributor
  • Moderator
17567 solutions 158888 answers

If you approve the container permission for the extension when you install the FBC extension then container tabs will be enabled automatically and you can't disable this (i.e. it is grayed as you see in the screenshot first), otherwise you need to disable/remove the extension.

If you approve the container permission for the extension when you install the FBC extension then container tabs will be enabled automatically and you can't disable this (i.e. it is grayed as you see in the screenshot first), otherwise you need to disable/remove the extension.
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Quote

Question owner

Thank you, cor-el. Unfortunately, even that doesn't make any difference.

I noticed that the other add-ons that require container tabs - CanvasBlocker and Firefox Multi-Account Containers - also seem to be working just fine. It looks like Preferences is simply confused.

So I tried creating a new vanilla profile. The steps I took were: Create a new profile Restart Firefox Notice that Bitdefender added two add-ons (see below) Add FBC Check preferences

The problem is still there.

I haven't put much time into figuring out how to prevent Bitdefender from automatically adding the two add-ons (Traffic Light and Bitdefender Anti-tracker) short of uninstalling it. I'll work on that.

I also can't remove the Bitdefender add-ons, which really annoys me. I've sent reports in on both of them for that.

Thank you, cor-el. Unfortunately, even that doesn't make any difference. I noticed that the other add-ons that require container tabs - CanvasBlocker and Firefox Multi-Account Containers - also seem to be working just fine. It looks like Preferences is simply confused. So I tried creating a new vanilla profile. The steps I took were: Create a new profile Restart Firefox Notice that Bitdefender added two add-ons (see below) Add FBC Check preferences The problem is still there. I haven't put much time into figuring out how to prevent Bitdefender from automatically adding the two add-ons (Traffic Light and Bitdefender Anti-tracker) short of uninstalling it. I'll work on that. I also can't remove the Bitdefender add-ons, which really annoys me. I've sent reports in on both of them for that.
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