Multi-Account Containers

  • This is a web-extension by Mozilla for Firefox. This extension allows the user to create containers where the cookies are kept separated from other containers or the main session.

    FireFox Multi Account Container page.

    • The extension is useful for users who have more than one accounts on one website.
    • One can create containers for Work, Research, Personal, Social Media, Banking, etc, thus literally keeping each separated from each other. 1 window, same web browser.
    • This is yet another great way to handle cookies & trackers across the internet. Keep each to its own.
    • Tabs still work the same. Can open as many tabs per container as you want.
    • Containers are color coded on tabs & also reflected on the navigation bar.

    Edit: added image to the main post.

  • Moderator

    @venix This looks similar to Profile Manager.

  • Hello Pesala,

    Profiles allow you to have different overall settings, extension, etc for the same browser. Cookies are open and visible to all tabs. For example, if you want to log into you business gmail account & your personal gmail account: 1) you will have to log out of one account to log into the other 2) open a new incognito/private window 3) Open a different web browser.

    Containers deals with cookies. Only tabs created in the same container will share/see each-others cookies. This mean that under the same session, you can have your regular session, & multiple containers (work, research, banking, you name it) keeping each separate. For example, you can log into 2 different twitter accounts (one under each container) keep each & their opened links etc too their respective container.

    *Perhaps A better explanation is found at the extension's page.

    Here is a view of Multi-Account Containers on Firefox:
    Tabs of the same containers are marked with a colored line at the bottom of the tab. Only tabs in the same container see each other. On this example I've two different containers open & the open in a regular tab. Same profile, one session, one browser, many containers all keeping their cookies, trackers, etc to themselves.


  • @venix @Pesala It's really useful and I don't know why Vivaldi doesn't have this.

    There's a browser called Ghost Browser that does it a bit different. They have "containers", they call it Sessions and they have Tasks. Tasks work like Sessions with sub-sessions or something like this.
    It's a paid browser with too limited options in the free version.

    There's a plugin called SessionBox, but it doesn't work well in Vivaldi.

    So, nowadays there's no good option to use an extension in Vivaldi and it could be so good for Vivaldi users. As an extension or as a native tool.

    If you make a search in the forum, there are more people asking for this tool in Vivaldi a couple of years.

    Best Regards

  • @andersoncosta I totally agree with you and I'm part of the people asking for this feature too. I use two web browsers because its not available in Vivaldi yet.

  • @venix
    A web browser should keep the data in each tab separate from other tabs in general - like a sandbox. And only allow communication between tabs on request and with the users permission.

    Or is that the case already (in Vivaldi/Chrome)? How many information can a website sniff out form another website in a different tab in that same browser?

  • @martin-storch the relevant isolation is done on a site (origin) base.
    The server/site is responsible for telling the browser which foreign access to e.g. cookies is allowed.

    Users are not in a position (or capable) to decide which resources must be shared for same site access from different tabs (login info).

    User-controlled sandboxing is done (at the moment) via private windows (with a single tab each). You can try this to roughly simulate why resource isolation (by default) on a tab basis will kill productivity.

  • @martin-storch sorry, private windows (still) have a shared session context, so this would not be an applicable simulation…

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