socialfixer.com

What It Is

Social Fixer for Facebook is a browser extension/user script for the desktop Facebook website. Its goal is to “fix annoyances, add features, and enhance existing functionality.” It first appeared in 2009 as a Firefox Greasemonkey script, and later expanded to Chrome, Safari, Opera, and other browser environments. Its author, Matt Kruse, positions it as a personal project offered free of charge to the Facebook user community.

Core Features and Developer Perspective

In terms of functionality, Social Fixer focuses on feed management and interface control. It can filter the News Feed by rules such as keywords, authors, and apps, and it also offers preset Filter Subscriptions that let users enable common filtering rules with one click, with background updates as Facebook changes. It also supports hiding Sponsored stories, political content, and read posts; keeping the Most Recent view; alerting users to hidden messages; displaying photo AI tags; and deeply modifying the Facebook UI through CSS or external CSS. Advanced users can also add HTML classes to matched posts and combine them with CSS for customized display. On the data side, it supports exporting and importing settings, filters, and preferences, making migration or backup easier.

Open Source, Privacy, and Ecosystem

The project is currently hosted in a private GitHub repository, but it is explicitly not open source. The author explains that the main reason is to prevent malicious forks from being distributed with injected malware or tracking code. On privacy, the main documentation promises that it does not send or record personal data, post on behalf of users, or insert ads, spam, porn, or malware. Facebook data is stored only in the browser. Non-Facebook requests are used only to check socialfixer.com for version updates and important messages, and no unique identifying information is sent. In terms of documentation, the FAQ provides fairly detailed explanations of permissions, privacy, debugging, lack of mobile support, and Greasemonkey, but there is no public API/SDK documentation.

Pricing and Who It’s For

The pricing model is free with optional donations. It is suitable for heavy desktop Facebook users, people who want to control feed noise, and advanced users comfortable with CSS and rule configuration. It is not suitable for mobile users, as the FAQ clearly states that the Facebook mobile app and mobile browser environments currently do not provide the conditions needed for implementation.

Pros, Cons, and Access from China

Its strengths are detailed functionality, clear privacy commitments, a long history, and high download numbers. Its drawbacks are that it is closed source, depends on Facebook’s page structure, may break when the platform is redesigned, and is maintained mainly by one individual. At present, Facebook is usually not directly accessible from mainland China, so actual use of Social Fixer will also be significantly limited unless Facebook access is addressed first. Some needs can be covered by ad blockers, but the main documentation states that Social Fixer can hide certain Sponsored stories at the code level that AdBlock cannot handle.