I have a Container named AbcContainer in my Firefox. Lets say, by mistake, I opt for a specific site (say http://example.org) to always open in that container. How do I go about clearing this preference, so that site http://example.org opens in Default Container going forward?

I get the below prompt, when opening http://example.org from Default Container. But, checking the "Remember my decision" checkbox and choosing "Open in Current Container" doesn't yield the desired results.

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4 Answers 4

  1. Open the website from within the container you want to remove it from.
  2. Right-click on the container icon to the right of the URL in the address bar.
  3. Uncheck the submenu item "Always open in this container"
  • 4
    There's no such option for me. Nov 23, 2020 at 14:51
  • 1
    @AshBerlin-Taylor For some reason, it doesn't always appear. I thought it was a bug for me.
    – Flimm
    Nov 24, 2020 at 8:22
  • 4
    I know this is an old question (and answer), but I just had the same problem and just in case it helps someone: The container submenu only appeared for me when I opened the page in the container that I wanted to remove it from. @Flimm, maybe add that detail to your answer so it's more visible?
    – Christian
    Jun 8, 2021 at 16:10
  • Yes, I was also not able to see the option. But when opened the page in the container that I wanted to remove it from, then the tick was visible. Jul 16, 2021 at 5:36
  • 2
    It didn't show up when right clicking on the page, but i found it by right clicking on the container icon in the address bar while on the page Dec 23, 2021 at 16:20

There is an option to configure in Container's management panel manage lists

  1. Open Containers add-on
  2. Click "Manage Containers"
  3. Choose the container you want to manage
  4. Click "Manage Site List..."

Now you are able to remove the sites.


Finally found it by following @Xinyu steps:

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  • 2
    Thanks, this is a proper, official way. Should be an accepted answer.
    – AKd
    Feb 28, 2023 at 17:52
  • 1
    Worked for me too, should be the accepted answer.
    – felleg
    Aug 7, 2023 at 19:52

I use this way, it's kind of tricky but it's work :)

  1. Create new container as "temp"
  2. Select always open this site in "temp" container
  3. open site in another container => tick remember my choice to make sure site always open in "temp" container without asking
  4. remove temp container in setting ( about:preferences#containers )

Done :)

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