Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of BugEye

BugEye by DeathEsther

Minimal-permission browser security toolkit for reconnaissance, OSINT and authorized web application security testing. 82 focused tools, observe-only workflows, no auto-attacks.

4.8 (5 reviews)4.8 (5 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Inspect the current page: security headers, cookies, CSP, JWTs, tech stack and more. Search across all 82 tools.Enumerate subdomains from 5 cross-checked sources, with notable hosts (api, admin, vpn, git...) surfaced first.
About this extension
BugEye is a minimal-permission browser security toolkit for authorized reconnaissance, OSINT, and web application security testing.

It provides 82 focused tools across 9 groups for inspecting browser tabs, security headers, cookies, CSP, JWTs, CORS, storage, links, scripts, source maps, DNS, WHOIS, certificates, subdomains, and other security-relevant information. It also provides reference material for common web security workflows.

BugEye observes and reports rather than performing automated exploitation, brute-force attacks, or denial-of-service activity. It is intended for authorized security testing only.

Privacy first: the extension does not include telemetry or analytics and does not use BugEye servers. Host access is requested only when required by a tool.
Developer comments
For authorized security testing only. Recon and OSINT triage. No automated exploitation.
Rated 4.8 by 5 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
4
4
1
3
0
2
0
1
0
Read all 5 reviews
Permissions and data

Required permissions:

  • Block content on any page
  • Access browser tabs

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Copy add-on ID
Version
1.0.2
Size
456.04 KB
Last updated
2 days ago (Sep 15, 2026)
Related Categories
  • Privacy & Security
License
GNU Affero General Public License v3.0 only
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • privacy
  • search
  • security
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.