Is "TikTok Watermark-Free Video Download by KOLSprite" on Firefox Add-ons Safe to Install?

KOLSprite · firefox · v2.0.5

All-in-one TikTok toolkit for creators & brands: Download, filter & analyze videos — no login.

Risk Assessment

Analyzed
100
out of 100
CRITICAL

143 security findings detected across all analyzers

Firefox extension requesting 22 permissions

Severity Breakdown

0
Critical
133
High
10
Medium
0
Low
0
Info

Finding Categories

133
Malware Signatures
3
Obfuscation
6
Network

YARA Rules Matched

13 rules(133 hits)
postinstall file manipulation postinstall system command postinstall obfuscation postinstall crypto operations postinstall network communication postinstall persistence mechanism postinstall file download postinstall environment access NoUseWeakRandom credential env files SQLInjection OriginsNotVerified postinstall registry modification

Requested Permissions

22 permissions
tabs
Medium
*://*.tiktok.com/*
Low
*://*.kolsprite.com/*
Low
*://plugin-data.kolsprite.com/*
Low
*://*.bing.com/ttranslatev3/*
Low
*://*.tiktokcdn.com/*
Low
*://*.tiktokcdn-eu.com/*
Low
*://*.tiktokcdn-us.com/*
Low
*://*.tiktokv.com/*
Low
*://*.doubao.com/*
Low
*://chatgpt.com/*
Low
*://grok.com/*
Low
*://claude.ai/*
Low
*://gemini.google.com/*
Low
*://chat.deepseek.com/*
Low
storage
Low
sidePanel
Low
declarativeNetRequest
Low
*://tiktok.com/*
Low
*://www.tiktok.com/*
Low
https://www.tiktok.com/*
Low
*://www.doubao.com/*
Low

Detailed Findings

143 total

YARA Rule Matches

13 rules

Security Analysis Summary

Security Analysis Overview

TikTok Watermark-Free Video Download by KOLSprite is a Firefox Add-ons extension published by KOLSprite. Version 2.0.5 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 143 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

  • High: 133 finding(s)
  • Medium: 10 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

  • Malware Detection: YARA rule matching against 2,400+ malware signatures
  • Secret Detection: Scanning for exposed API keys, tokens, and credentials
  • Static Analysis: Code-level security analysis for common vulnerability patterns
  • Network Analysis: Detection of suspicious network communications and endpoints
  • Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

TikTok Watermark-Free Video Download by KOLSprite is published by KOLSprite on the Firefox Add-ons marketplace. The extension has approximately 298 users.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Frequently Asked Questions