Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
Log in
Preview of AdSniffer

AdSniffer by Michael Xiong

Automatically identify ads, sponsored posts, and AI-generated text across your social media feeds.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

About this extension
Automatically identify ads, sponsored posts, and AI-generated text across your social media feeds.

Take Control of Your Social Media Feed

Know what's promoted and what's AI-generated — right as you scroll.

This extension automatically analyzes posts across your favorite social platforms to help identify hidden promotions and potentially AI-generated content. Clear, visual badges appear right next to each author's handle, giving you more context about what you're reading and letting you decide how you want to experience your feed.

✨ SMART AD DETECTION

Spot different types of promotional content with clear, easy-to-read badges:

• Direct Ads — Posts directly promoting products or services.
• Sponsored — Brand collaborations, influencer deals, and paid endorsements.
• Lead Generation — Promotional content designed to drive sign-ups, collect leads, or generate clicks.

Each ad badge displays a confidence probability, helping you understand how strongly the analysis indicates that a post belongs to a particular category.

🧹 YOU CONTROL YOUR FEED

Want to see ad labels without changing your browsing experience? Or prefer a cleaner feed with fewer distractions? The choice is yours.

• Tag Only — Display ad badges so you can identify promotional content while browsing normally.
• Fold Ads — Collapse detected promotional posts using the fold button next to the badges.

Change your mind anytime. Expand folded posts or fold them again whenever you want. You're always in control of what you see.

🤖 AI-GENERATED CONTENT DETECTION

Wondering whether a post was written by a human or an AI?

Get an at-a-glance assessment of whether a post may have been generated by a large language model (LLM), along with an estimated AI-generated percentage.

🏷 SEAMLESS INLINE BADGES

No popups. No extra clicks. No interruptions.

Ad classifications, confidence probabilities, and AI-generated content estimates appear directly alongside usernames in your feed, keeping useful information exactly where you need it.

🌐 MULTI-PLATFORM SUPPORT

Enjoy a more transparent browsing experience across your favorite platforms:

• X (formerly Twitter)
• Bluesky
• Threads

⚙ HOW IT WORKS
  1. Browse normally. As you scroll, the extension detects posts and reads their text content.
  2. Analyze content. The JEV analysis engine evaluates posts for promotional content and potential AI generation.
  3. See the results. Relevant badges appear directly in the post header, showing ad categories, confidence probabilities, and AI-generated content estimates.
  4. Customize your feed. Choose to display ad badges only or fold detected promotional posts, with the flexibility to expand or collapse them whenever you like.

🔎 BROWSE WITH MORE CLARITY

Spot promotions more easily. Get insights into potentially AI-generated text. Reduce distractions when you want to.

Take control of your social media feed and enjoy a more transparent browsing experience — on your terms.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for sites in the threads.com domain
  • Access your data for sites in the threads.net domain
  • Access your data for x.com
  • Access your data for twitter.com
  • Access your data for bsky.app
  • Access your data for threads.com
  • Access your data for threads.net

Optional permissions:

  • Access your data for api.typesafe.ai
  • Access your data for adsniffer.app

Required data collection, according to the developer:

  • Authentication information
  • Website content
Learn more
More information
Add-on Links
  • Support site
  • Support Email
  • Copy add-on ID
Version
1.2
Size
62.44 KB
Last updated
3 days ago (Oct 24, 2026)
Related Categories
  • Feeds, News & Blogging
  • Privacy & Security
  • Social & Communication
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.