Product updates

Changelog

Every change to FireflyProtector: new features, improvements, and fixes across Lua VirtualBox, JS-Reactor, HuTaoCrypt, and the platform.

Latest release
v1.0.4

JS-Reactor Update

Sep 7, 2026 yesterday

Added

  • Added lowering support and virtualization for for...of/for...in loops
  • Added lowering support and virtualization for try/finally
  • Added loop budget guards to the VM
  • Added lowering support and virtualization for lexical shadowing, inline callbacks, and update expressions

Improved

  • Improved output performance

Fixed

  • Fixed bugs in the VM compiler, renamer, string encryption, and obfuscation passes
v1.0.3

JS-Reactor Update

Aug 31, 2026 1w ago

Improved

  • Updated Code-Generation to achieve 86%~ less output while protection remains the same
NaN

FireflyProtector now supports higher demand!

Aug 29, 2026 1w ago

I have added a queuing system, so the system does not overload, even on higher demand.
The website uptime will be better from now one.
Thank you for 2.000 total registered users!

v1.3.0

Lua VirtualBox big Update for New Obfuscator

Jul 9, 2026 2mo ago

Improved

  • Improve Anti-Emulation
  • Improve Proxy Detection
  • Optimize Name Generator
  • Optimize VM-Wrapper
  • Improve Anti-Tamper
  • Improve VM-String-Encryption
  • Optimize File size ~22%
  • Improve Blob-Obfuscator Guard
  • Improve VM-Mutation

Changed

  • Remove Debugging

Other

  • Made VM-Compression stronger
  • More complex Op-Code-Gen
v1.0.4

HuTaoCrypt

Apr 17, 2026 4mo ago

Improved

  • Better Viewer

Fixed

  • Fix Renaming Crash

Performance

  • Increase Decryption Performance
  • App speedup 3x
v1.0.2+v1.0.0

Release HuTaoCrypt

Apr 11, 2026 5mo ago

Other

  • 1.0.0 for latest Linux
  • 1.0.2 for latest Windows
v1.0.4 (Hotfix)

Hotfix Performance

Feb 25, 2026 6mo ago

Performance

  • 8.1x performance impact reduced to 1.3x
v1.0.4

LuaVirtualBox Security Update

Feb 20, 2026 6mo ago

Added

  • Add OpcodeInlining
  • Add Bytecode Flattener
  • Add ID/opcode scrambling and block fusion

Improved

  • Update VirtualOps
  • Update compiler

Fixed

  • Resolve Pattern Scanning
v1.0.3

LuaVirtualBox Update

Feb 15, 2026 6mo ago

Added

  • new bytecode
  • full support for roblox

Improved

  • improve anti dumping and runtime checks

Security

  • polymorphic, XTEA-encryption

Other

  • non deterministic execution flow
  • smarter vm and compiler
v1.0.2

LuaVirtualBox - Major Security Update

Feb 11, 2026 6mo ago

Improved

  • Improve Constant Encryption
  • Improve Trashgen
  • Improve Performance
  • Updated 5.4 Lua

Fixed

  • Fixes Bugs

Changed

  • ChaCha20 Encryption replaced Base64 encoding

Security

  • Increase Protection and Stability, while removing nested VM
v1.0.2

JS-Reactor Major Security and Stability Update

Feb 11, 2026 6mo ago

Added

  • Increase obfuscation strength; add VM ops

Improved

  • Enhance control-flow flattening & fix browser code
  • Improve String Encryption
v1.0.1

JS-Reactor Updated

Jan 8, 2026 8mo ago

Added

  • Added dynamic key for each VM-Call
  • Added lovely "Hu Tao" mode
v1.0.0

JS-Reactor is now Free

Jan 8, 2026 8mo ago

Features:
✅ Anti-Debugging (Prevent Developer Console)
✅ CFF-Obfuscation
✅ Trash-Gen
✅ Anti-Patching
✅ Math-Mutation
✅ Renaming
✅ String-Obfuscation
✅ VM-Opcode Obfuscation (Virtualizer)

v1.0.2

Python 3.10.5 Support

Dec 30, 2025 8mo ago

Added

  • Changed a internal method for the obfuscation to maintain support for python 3.10.5.

Other

  • You still need to install the libraries to avoid silent failure.
v1.0.1

Lua VirtualBox has been Updated!

Dec 4, 2025 9mo ago

Added

  • New "mini mode" for better performance
  • added presets
  • added junk code

Improved

  • improved anti tamper

Fixed

  • fixed bugs
v1.0.1 (12/01/2025)

LuaU Deobfuscator Updated!

Dec 1, 2025 9mo ago

Release Notes - Lua Deobfuscator v1.2
New Features & Improvements:

Enhanced Mock Environment: The internal mock environment (dumper.lua) has been significantly expanded to simulate a full Roblox Executor environment.
Added mocks for Synapse X (syn, syn.request, syn.crypt), KRNL, and Fluxus globals.
Added filesystem simulation (readfile, writefile, listfiles, etc.) to prevent crashes on script initialization.
Added console and input service mocks (rconsoleprint, mouse1click, etc.).
Added robust stubs for Roblox data types: Vector3, Vector2, CFrame, UDim2, Ray, Region3, TweenInfo.
Bug Fixes:
Fixed a stack overflow crash in Vector3.new and Vector2.new caused by recursive unit property initialization.
Fixed issues where scripts checking for getgenv or getrenv would fail.
Support:
Updated documentation to reflect that active support and development have moved to GitHub.

v1.0.0 (12/01/2025)

PyConfuser has been Updated

Dec 1, 2025 9mo ago

Added

  • Added a new Packer
  • Added new "Junk"

Other

  • File size decreased