Extprint3r |best| -

extprint3r arrives on the scene like a neon flyer stuck to a lamppost at 2 a.m.: part announcement, part provocation. It’s an odd artifact of our era — equal parts utility and personality — that both promises to bridge gaps and highlights just how many gaps we keep trying to bridge.

It can turn off admin-installed extensions, including web filters.

The LTMEAT family, now hosted in curated repositories like the "EXT-REMOVER" collection on GitHub, includes numerous variants:

Note: As of late 2025 and early 2026, discussions indicate that while some methods are patched, developers like Blobby-Boi continue to update their tools, leading to discussions about it still functioning on some updated Chrome versions. ExtPrint3r vs. ExtHang3r: The Evolution Before ExtPrint3r, there was . extprint3r

Submitting a formal ticket to school administrators to unblock resource sites. Accessing project assets or niche research platforms.

In the landscape of managed ChromeOS devices, particularly those used in educational settings, a constant cat-and-mouse game exists between system administrators seeking to secure devices and students seeking to bypass restrictions. One of the most significant, and now patched, exploits in this arena is .

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. why does this not work on chrome OS v134 or higher? #185 extprint3r arrives on the scene like a neon

that document how administrators protect devices. Let me know what you'd like to know! GitHub - killsecurly/blobbyboi-extprint3r

An attacker (or a student trying to bypass school monitoring) activates the ExtPrint3r script. This is often done by clicking a specially crafted bookmarklet saved in their browser's bookmarks bar.

As of late 2025, Google has patched the specific vulnerability enabling ExtPrint3r in ChromeOS versions beyond 134. However, the underlying technique of using print operations to manipulate extension processes may resurface in future variants, particularly if new patches inadvertently reintroduce similar conditions. The LTMEAT family, now hosted in curated repositories

Once the default extensions are inactive, users try to enable Developer Mode or sideload unverified files. Risks, Disadvantages, and System Instability

: When the user triggers the print command, the browser attempts to render all these iframes for the print preview. This causes the embedded extension page to "hang" or freeze, while the rest of the host page remains functional. Extended Duration