Restrict extensions to containers / Exclude extensions from containers

[Zocker1999NET]

Extensions (or add-ons) are great to enhance the web experience, but entrusting them with access to the content of all websites I visit (if the features of those require it) is a little bit too much. Some extensions can already solve that: Extensions which only want to modify e.g. YouTube do not need "Access [to] your data for all websites". But other extensions should be possible to use on all webpages, e.g. extensions replacing/blocking "bad words", translating extensions or extensions, which should work with self-hostable instances of services (GitLab, Phabricator, Nitter, …). They cannot easily restrict themselves to some domains (e.g. the official variants) because that would also restrict their use. But, most of the time, such extensions cannot & should not be able to see my whole history or access data when I'm using online banking.

Using different Firefox profiles is a way to solve that problem, but it is not easily usable because switching between these sessions is not easy. However, it is easy & user-friendly & automatable to work with containers, e.g. I can assign certain domains to certain containers so visiting them automatically switches to or suggests  the assigned container. And already are containers used to enhance security & privacy. By allowing users to restrict extensions to certain containers, I can easily configure which extensions should be able to modify which website(s), either special selected ones or I can easily switch to a certain container to enable more not-so-trusted extensions if I need to. And by allowing to exclude some or not explicitly selected extensions from certain containers, I can increase the security of online shopping / banking services because fewer extensions would have access to the data of those.

This would make it easier for users to trust extensions which need the "Access your data for all websites" permission because I would not be required to give them access to all unconditionally.

[Jon]

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[Sisebuto_]

Wouldn't it be easier to just simplify profile management and usage?

[Zocker1999NET]

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@Sisebuto_wrote:
Wouldn't it be easier to just simplify profile management and usage?

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Could be a way, but I like the idea of containers being able to be enforced for certain URLs / webservices automatically (e.g. when opening a GitHub link, the container addon will automatically open it in the GitHub container, as I configured Firefox to do so). And multiple containers can be mixed into one window, as profiles require different windows and also each addon has different configurations for each profile, whereas (beside of the access to the website's data) my idea allow it to have the same configuration (meaning less work to synchronize those) for all containers being applied.

[igorlogius]

Sounds useful. Just as being able to restrict addons to certain sites ... being able to restrict them to containers or tabs ... would make sense.  +1

[ChodaBoy]

I would really appreciate the ability to restrict certain add-ons to specific containers. For example, shopping add-ons like Honey should be restricted to my Shopping container so they cannot track me anywhere else. YouTube related add-ons could be restricted to a YouTube container. And so on.