By: Diéssica
Blocks "seen" marks on Facebook Messenger and Instagram Stories. Because privacy.
Features & Capabilities
User Growth & Download Statistics
Manifest V2 Add-on
- By:
- Diéssica
- Daily users:
- 422 -7
- Rating:
- 3.50 (14)
- Version:
- 1.3 Last updated: 2022-04-24
- Version code:
- 5396154
- Creation date:
- 2018-01-19
- Risk:
- High risk impact Low risk likelihood
- Permissions:
- storage
- webRequest
- webRequestBlocking
- *://*.facebook.com/*
- *://*.instagram.com/*
- storage
- Size:
- 178.06KB
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-23
- Compare stats and ranking:
- No Seen – for Facebook and Instagram vs Social ghost
- No Seen – for Facebook and Instagram vs FBIG Stories Unseen
- No Seen – for Facebook and Instagram vs Seen Blocker for Facebook™
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
User Reviews
Pros
- Used to work great when first installed.
- Some users find it amazing and perfect for their needs.
- Helpful for managing visibility on Facebook and Instagram.
Cons
- Does not work currently on Facebook chats or Messenger site.
- No functionality to easily toggle the add-on on and off without going into add-ons page.
- Apparently not working for Instagram either in recent tests.
Recent reviews
by 远离*****, 2025-04-07
checked it with my friend, both chat and stories, doesnt work.
by Fi*****, 2025-03-18
by 退出*****, 2025-02-18
Is No Seen – for Facebook and Instagram Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
No Seen – for Facebook and Instagram requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Request access to the following domains: facebook.com, instagram.com
- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
No Seen – for Facebook and Instagram has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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Best No Seen – for Facebook and Instagram Alternatives
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Phạm Trung Kiên