By: Andras Horvath
It marks the domain of the active tab untrusted, reloads the page and blocks scripts from running on it. An option for the user to stop a website eating up resources or doing malicious things even if it breaks the functionality of the page.
Features & Capabilities
User Growth & Download Statistics
- By:
- Andras Horvath
- Daily users:
- 1,223 -6
- Rating:
- 4.51 (79)
- Version:
- 4.4resigned1 Last updated: 2024-04-25
- Version code:
- 5728856
- Creation date:
- 2017-10-03
- Risk:
- High risk impact Moderate risk likelihood
- Permissions:
- storage
- tabs
- webRequest
- webRequestBlocking
- <all_urls>
- storage
- Size:
- 17.71KB
- Email:
- ma*****@log69.com
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-14
- Compare stats and ranking:
-
Contact the developer
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User Reviews
Pros
- Significant performance gains: blocking scripts reduces CPU usage and makes many sites snappier.
- Three-state blocking: option to block no JS, local JS, or all JS for fine-grained control.
- Easy to use and straightforward to configure.
- Effectively blocks scripts, ads, and pop-ups, reducing clutter and speeding up page loads.
- Helpful for bypassing paywalls or gating on some sites.
Cons
- Recaptcha is blocked even when set to no-block, which hurts usability on some sites.
- Some sites exhibit breakage or CSP-related errors when blocking scripts (site compatibility issues).
Recent reviews
This site fixes Amazon CPU usage, and constant CPU spikes when using Firefox. Amazon's website went from unusable to snappy instantly after turning on full blocking. Though, it does block some functionality, but for just browsing, it is a godsend. Having to toggle through the 3 levels of blocking when needing to access context buttons for menus and organizing cart/wishlist is better than waiting 3-5 seconds for hover-menus and the hyperlinks actually becoming clickable.
by Dr*****, 2026-03-16
I can confirm YesScript2 works on Firefox 144.0.2 (the current version as I post this) on my brand new Lenovo 14" IdeaPad laptop with up-to-date Windows 11. Tip: Be sure to enable the "[x] Pin extension icon to toolbar" in the pop-up prompt when installing, otherwise you'll have to uninstall and try again. Yes, the grey icon can be moved on the toolbar like other icons.
by Fi*****, 2025-11-08
by 全民*****, 2025-04-02
Is YesScript2 Safe?
Risk impact
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, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
YesScript2 requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. 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 Firefox add-on.
YesScript2 is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension support email may not be valid
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- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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Extension Guard
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