Boosts the efficiency of zyBook

What is zyBoost?

zyBoost is a Chrome extension by Anoxic. This extension has 110 weekly active users, a perfect 5.0 rating, and was removed from Chrome Web Store a year ago. The latest version, 1.1, was updated 5 years ago.

This extension was removed from Chrome Web Store on 2021-11-28
Stats date:
By: Anoxic
Users: 110
Rating: 5.00 (2)
Version: 1.1 (Last updated: 2018-02-01)
Creation date: 2018-02-01
Manifest version: 2
  • activeTab
  • storage
Featured: No
Size: 41.29K
Email: Click to see
Risk impact: Moderate risk impact
Risk likelihood: High risk likelihood
Found a bug?

Other platforms

Not available on Firefox
Not available on Edge
Written by the original author of zyKiller, this is a working version to boost the efficiency when you are using zyBook. 

If this extension doesn't work, please use the contact email in the extension (when you click the button)

Disclaimer: this extension is to be used for educational purpose only. 


- Fixed animation loop
- No longer need to refresh page when switched to another site
Risk impact

zyBoost requires some risky permissions and may not be safe to use. Exercise caution when installing this extension. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

zyBoost may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "zyBoost",
  "description": "Boosts the efficiency of zyBook",
  "version": "1.1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  "permissions": [
  "content_scripts": [