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alamalo
Strollin' around
Status: In development

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.

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113 Comments
WillSmith
New member

This thread started in 2022; it's 2025 now...

We keep hearing about how this extremely obvious, necessary and seemingly extremely easy to implement idea for a feature has garnered attention, yet here we are at 0% progress.

Honestly, what is Firefox even developing if not specifically this??
I can't think of a single thing that could me more important than fixing this glaring security issue which would also double as a massive sortof QoL feature...

Firefox is still the best browser, but this is irritating; just do the thing already...

atonofclay
New member

Agree, this should be added to Firefox!!

Boboss
New member

Iโ€™m surprised this feature is still missing. Firefox usually leads the way in privacy and customization. There should be an allow list and a block list, letting users specify domains or URLs.

That said, itโ€™s probably not as simple as it sounds. Properly implementing this while preventing extensions from misusing cross-page access could be tricky. Some possible challenges include:

- Preventing Cross-Site Data Leakage (e.g., iframe access between allowed and blocked pages)
- Handling Redirects and Dynamic URLs
- Ensuring Extensions Can't Bypass Restrictions (e.g., injecting scripts indirectly)

Still, I hope Mozilla prioritizes this, as it would be a major improvement for user control and security!

AhmedMoti
New member

Has there been an update on this?

Not even too sure how the file works from my OS, I tried managing the extensions manually, no luck at all, I've been on Firefox for 3 days, so I am not even too sure how  extensions work

bacf
New member

I've noticed that the iCloud Passwords extension is significantly slowing down Firefox, but only on one specific website (Reddit). It would be great if there were an option to disable specific extensions on a per-site basis, as the performance issue only occurs on that site. I do not want to disable the extension entirely so this would be actually a nice implementation.

LizardInBigCoat
Making moves

Functions I'd like to see:

  • Ability to toggle an addon's ability to read and modify sites, regardless of what it wants to have access to. 
    • By default this change will be per session/visit (Allow Once), then will revert to default behavior, but can easily be made permanent (Allow according to Addon Permissions). 
    • Also, give users the ability to choose what the default state of each addon is;
      • always able to read data (if Addon permissions require it) until temporarily changed,
      • or never read data for any site, (regardless of addon permissions), until temporarily changed.
    • This would be a middle ground between letting addons be active anywhere, having them disabled in the about:addons page, and having them uninstalled.
      • Call it temporarily disabling addons, or disabling them only for specific sites, or specifically choosing to have them only active on certain sites, and disabled everywhere else.
  • Ability to group addons, and restrict their ability to read and modify sites collectively, by using a toggle associated with the group, not individual addons.
    • Have these groups able to be associated with addons pinned to the toolbars as well as addons in the the Extensions Button menu.
    • (Groups I'd create include 'Adblockers' 'Quick Tools' 'Containers' 'Website Specific Enhancers'). That sort of thing.
      • This would allow something functionally like temporarily disabling all adblockers for a site without having to go addon by addon disabling each one in whichever way those addons are designed for.
B100DY
New member

as bacf said, the apple passwords extension is completely broken for reddit and its making firefox unusable for me as someone who uses apple passwords on my macbook pro for signing in to accounts. I would also love to see this feature for security reasons. I need a browser that has a functional version of the apple passwords extension that doesnt break my browser on certain sites as nothing else works as well as icloud passwords for mac users. I really like firefox, but as someone who uses reddit often and cant stand switching back and forth to use one website, I will be switching to a different browser until either the extension is fixed or you guys implement this feature you said was in development way back in 2022. Its a pretty simple feature, chromium has had it a while now and same for edge and i think safari as well. This seems like a really big deal to a lot of people, I know you developers are busy but this is a big deal for a lot of us so please try and get it implemented so I can come back to my favorite browser (firefox). Until then I guess I have to use a chromium browser or safari ๐Ÿ˜•

WillSmith
New member

Back when I first posted here and somewhat quickly saw an official response I was hopeful.

It's 2025 and this feature is clearly not in development or even being seriously considered, despite being easily one of if not THE most important missing feature for firefox.

I have no doubt the programming behind such a feature has to be the most basic **bleep** ever, literally it's just a list of URLs that is referenced to turn off extensions.

There is just no excuse for this extremely basic and impactful feature to not exist for several years already. Shameful.