Spoiler Slayer

Name: Spoiler Slayer
Rating: 3.3636 (11 reviews)
Author: Brett Profitt

An open source, extensible, and simple spoiler blocking plugin with out-of-the-box support for Facebook, Reddit, Twitter, Google News, and more!

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Features & Capabilities

Spoiler Slayer is a lightweight, open source browser extension designed to block spoilers for TV shows and movies on popular websites such as Facebook, Reddit, Twitter, and Google News. It offers out-of-the-box support for many platforms, allowing users to subscribe to regularly updated spoiler lists with just one click. Advanced features include customizable blur intensity, reveal on hover or click, RegEx support for precise blocking rules, and a selector helper to add new sites easily.

The extension respects user privacy by not sending any data to third-party servers. It enables import and export of personalized spoiler lists and tracks the number of spoilers successfully blocked. Spoiler Slayer is perfect for anyone wanting a spoiler-free browsing experience without compromising on simplicity or control.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Daily users:

Rating:

Version:

1.1.1resigned1 Last updated: 2024-04-26

Version code:

5732477

Creation date:

2018-12-10

Risk:

Permissions:

tabs
activeTab
storage
downloads
alarms
https://*.github.com/
https://*.gitlab.com/

Content scripts matches:

<all_urls>

Size:

11.70MB

Email:

br*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 9,045 ▲ 234

Other rankings

#153 in player keyword 43 #184 in subscriptions keyword 24 #212 in subscription keyword 29 ▼ 1

Other platforms

Spoiler Slayer (v1.1.0)

112 5.00

(2)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Brett Profitt

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/spoiler-slayer/

Email:

br*****@gmail.com

Website:

https://github.com/brettp/spoiler-slayer/issues

User Reviews

Not easy to setup (not through the fault of the dev - every website works differently so needs different CSS selectors, and sometimes they update their layout), but once you've configured the selectors for all your websites works like a charm!! Saves me from spoilers for every show I watch & game I play, thank you so much for making this I really needed it.

by Fi*****, 2025-09-22

This addon does not work. I tried it on Youtube and Reddit, and nothing is blocked regardless of what I put in the blocklist.

by ea*****, 2025-04-16

Too much effort to make it work and even then copying selectors didn't work. Avoid unless you want to waste your time.

by Fa*****, 2024-11-16

View all user reviews ›

Is Spoiler Slayer 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.

Spoiler Slayer 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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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.

Spoiler Slayer has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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