Option to allow extensions to run only on specific websites.

[alamalo]

There should be a way to allow extensions to execute only on specific websites like the Site access option in Edge does, this improves extensions usability and may also enhance privacy.

 

[kinox]

This is a must-have feature, even for Manifest v2 since we can't expect extension authors to want to move to v3. Please weigh the immense security protection this will provide.

[0l1v1er]

This is a show-stopper for me. I can't use Firefox until this is available.

[JN]

It's hard to believe that this hasn't been implemented yet when the permission system already has the ability to restrict extensions to domains.

I start to wonder what incentives there might be for allowing extensions to run unrestrained.

We shouldn't be trusting any extension with more data than it needs.

As an idea it would be good to have predefined and user-defined groups. Like, X extension is not permitted to run on Social Media domains.

[zakius]

it's even more concerning seeing how extensions we need to run on all pages can't do that (mouse gestures really need to run on absolutely all pages! come on!) and ones we'd like to limit we can't limit

[Headroom8926]

This is definitely one of the biggest features that I routinely feel like I am missing out on by choosing to use Firefox versus other browsers (Chrome). I tend to use certain add-ons that improve my experience on certain sites, but there is no need for them to have access to all of my site data. Having to open up my add-ons tab every time to disable / enable them is also extremely annoying. It'd be great if this feature could be added soon- and it seems like it has been in consideration / development for a while now!

[Noir_Blanc]

This would be pretty helpful for those with many add-ons, and tone down on resource usage.

[WillSmith]

I'm sad to see this wasn't implemented, Firefox is such a flexible browser that lets you do whatever you want compared to the others, I was surprised it didn't have this feature already.

This would be very useful to be able to have extensions only affect what you want, for example to have an adblocker work on a specific website without having to whitelist the rest of the internet.

[WillSmith]

I'm sad to see this wasn't implemented, Firefox is such a flexible browser that lets you do whatever you want compared to the others, I was surprised it didn't have this feature already.

This would be very useful to be able to have extensions only affect what you want, for example to have an adblocker work on a specific website without having to whitelist the rest of the internet.

[TriMoon]

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@WillSmith wrote:

for example to have an adblocker work on a specific website without having to whitelist the rest of the internet.

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 Then you're using the wrong Adblocker, UBlock-Origin has the ability to turn it off for some sites 😉

[WillSmith]

@TriMoonYes, and so does every other adblocker ever. You misread my reply.

[brixter]

I want a reverse option too.

Addons will run on every website except select websites.

Use case: I want my ad blocker addon to ignore websites I support. I want my trusted websites to get ad revenue from me.

[NeoDestiny]

Would like to see this feature also.

I use a legacy extension that no longer receives (security) updates. I only need that extension for 2-3 specific websites. It would enhance the security (and privacy) of my Firefox usage significantly to be able to lock that extension down.

[piotr012]

Lack of this feature is the only reason why I don't use Firefox.

Often I see addons which request permissions for all websites for no good reason, even though they are designed to work on one specific website only. 

For example: Why does adblocker and 9 other plugins I use need to run on all websites  even when I use gmail or login to bank account? Lack of this feature is huge security risk. 

[Stratic]

On sites with confidential data, allowing only explicitely chosen extensions is mandatory for security. It's incredible that this primary security feature was not present from start in Firefox !!!

Running extensions with global permissions for any site without any exception is incredibly dangerous. Wake up please...

[DoS]

Blacklisting for sensitive/delicate webistes, e.g. paypal and so on is really important.

Also protect session cookies (if not already).