Project Summary
An add-on and web app for visualizing HTTP requests between websites in real time.
This add-on was formerly called "Collusion".
In a Nutshell, mozilla-lightbeam...
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took an estimated 6 years of effort (COCOMO model)
starting with its first commit in June, 2011
ending with its most recent commit about 7 years ago
GNU General Public License v2.0 or later
Permitted
Commercial Use
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Distribute
Place Warranty
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
GNU Lesser General Public License v2.1 or later
Permitted
Commercial Use
Modify
Distribute
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Notice
These details are provided for information only. No information here is legal advice and should not be used as such.
Mozilla Public License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Distribute Original
Disclose Source
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryJun 17 2026 — Jul 17 2026
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12 Month SummaryJul 17 2025 — Jul 17 2026
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