Tabs marked as "alwas open in this container" open twice

[kanekv]

• Multi-Account Containers Version: 8.0.6
• Operating System + Version: Mac OS Catalina
• Firefox Version: 98.0.1 (64-bit)
• Other installed Add-ons + Version + Enabled/Disabled-Status:

  1Password – Password Manager    extension   2.3.2   true    {d634138d-c276-4fc8-924b-40a0ea21d284}
  Add-ons Search Detection    extension   2.0.0   true    addons-search-detection@mozilla.com
  Amazon.com  extension   1.3 true    amazondotcom@search.mozilla.org
  Auto Tab Discard    extension   0.5.0   true    {c2c003ee-bd69-42a2-b0e9-6f34222cb046}
  Bing    extension   1.3 true    bing@search.mozilla.org
  DuckDuckGo  extension   1.1 true    ddg@search.mozilla.org
  eBay    extension   1.3 true    ebay@search.mozilla.org
  Firefox Multi-Account Containers    extension   8.0.6   true    @testpilot-containers
  Google  extension   1.2 true    google@search.mozilla.org
  Sticky Containers   extension   1.0.6   true    {e09d73e8-c306-4900-a60d-eb62f78cf10a}
  Tab Wrangler    extension   6.9.0   true    {81b74d53-9416-4fb3-afa2-ab46684b253b}
  uBlock Origin   extension   1.41.8  true    uBlock0@raymondhill.net
  Wikipedia (en)  extension   1.1 true    wikipedia@search.mozilla.org

Actual behavior

Opening tabs with sites marked as "always open in this container" opens 2 duplicate tabs.

Expected behavior

Open single tab

Steps to reproduce

1. Mark website as "always open in this container"
2. Type website address in address bar

[achernyakevich-sc]

I suspect that you have a wrong behavior because of potential conflict of installed Add-ons. I would propose you to make the following test - disable (it could be done on about:addons page) all add-ons except MAC and test. At least the following add-ons would be great to disable:

• Auto Tab Discard
• Google extension
• Sticky Containers
• Tab Wrangler
• uBlock Origin

If tabs doubling will not be reproduced anymore then you could try to enable one by one and find that one that cause the problem.

[kanekv]

It is caused by a combination of this plugin and sticky containers one. Is there other way to make new tab open using same container as current?

[kanekv]

Settings mention a couple of shortcuts, but nowhere to set them.

[achernyakevich-sc]

You can configure MAC shortcuts the same way as for all other firefox Add-ons:

• open new tab and visit about:addons or use Ctrl+Shift+A shortcut (Cmd+Shift+A for macOS).
• click gear icon and select Manage Extension Shortcuts (see below)
• it will open a screen with shortcuts configuration, scroll till MAC sections and set shortcuts that could be usable for you:

Default shortcuts are quite convenient (like Ctrl+Shift+. But if you changed order of containers then you should update shortcuts manually as these belongs to containers and not to real order number of container in the list. :)

I think your issue is resolved. So could you close this issue?