Likely refers to Hydroxide (a popular script debugging/exploit tool) or a specific script hub/executor. Potential Risks Using these types of scripts involves significant risks:

Creating scripts for Roblox can be risky, especially if they involve exploiting or modifying game mechanics in unauthorized ways. ... Developer Forum | Roblox SwampM0nster FE Script Hub Showcase - ROBLOX ...

How does citizen get his FE scripts and what does he use? : r ...

The phrase "" typically refers to an exploit script for Roblox , often hosted on sites like Pastebin or YouTube. These scripts claim to bypass game security to give players unlimited currency. Key Terms Explained

Many scripts marketed as "FE" don't actually work because Roblox forces security on all modern experiences. SwampM0nster FE Script Hub Showcase - ROBLOX ...

Downloadable executors or scripts from untrusted sources often contain viruses or "cookie loggers" designed to steal your account.

What does FE stand for? - Game Design Support - Developer Forum