What is Greasemonkey?

55/100
Trust Score (C)
⚠️ Use Caution

Greasemonkey is a firefox that Customize the way a web page displays or behaves, by using small bits of JavaScript.. It has a Nerq Trust Score of 55/100 (C). 0 GitHub stars. Published by Anthony Lieuallen. Last analyzed April 2026.

Why This Score

Trust & Safety Overview

55
TRUST SCORE
C
GRADE
0
STARS
0
DOWNLOADS

What Greasemonkey Does

Greasemonkey is a firefox in the firefox category. Customize the way a web page displays or behaves, by using small bits of JavaScript.. It is published by Anthony Lieuallen and has no specified license. With 0 GitHub stars and 0 downloads, it has a small community of users and contributors.

Who Should Use Greasemonkey

Greasemonkey is suitable for evaluation and non-critical use. Review the trust score breakdown before using in production.

Details

AuthorAnthony Lieuallen
Categoryfirefox
LicenseNot specified
Typefirefox
SourceView on GitHub
Security Score0/100
Activity Score0/100

How to Get Started

Check the trust score before installing:

curl nerq.ai/v1/preflight?target=greasemonkey

Setup guide · Full safety report · Production review · Is it safe?

Frequently Asked Questions

What is Greasemonkey used for?
Greasemonkey is a firefox tool. Customize the way a web page displays or behaves, by using small bits of JavaScript..
Is Greasemonkey free?
License: Check project page. Greasemonkey has 0 GitHub stars.
Is Greasemonkey safe?
Greasemonkey has a Nerq Trust Score of 55/100 (C). Use with caution.
What are alternatives to Greasemonkey?
Top alternatives: . See full comparison.

Last updated April 2026. Trust scores based on automated analysis of public data.

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