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.
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.
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
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!