Greasemonkey VS User JavaScript and CSS

• Customization
  Greasemonkey allows users to customize the appearance and functionality of a website by injecting JavaScript code, offering a high degree of personalization.
• User Community
  A large community of users and developers contributes to a vast library of scripts, enabling users to easily find and install scripts that meet their needs.
• Open Source
  As an open-source project, Greasemonkey encourages transparency and collaboration, allowing developers to contribute and improve the functionality of the extension.
• Cross-Platform Compatibility
  Greasemonkey scripts are compatible with most modern browsers through various extensions, allowing scripts to work across different systems.

Possible disadvantages

• Security Risks
  Scripts can potentially contain malicious code, leading to security vulnerabilities if users install scripts from untrusted sources.
• Script Maintenance
  Users may need to maintain or update scripts themselves, especially when websites update their layout or functionality, causing existing scripts to break.
• Limited Browser Support
  While Greasemonkey is primarily designed for Firefox, users of other browsers might need to use alternative extensions like Tampermonkey, which may not support all features of Greasemonkey.
• Learning Curve
  Users who wish to create or modify scripts need a good understanding of JavaScript, which may pose a challenge to those less familiar with coding.

• Customization
  User JavaScript and CSS allow users to customize websites according to their needs and preferences, enhancing their browsing experience.
• Control
  Gives users control over how content is displayed, enabling them to hide or modify unwanted elements on a webpage.
• Accessibility
  Users can improve accessibility by altering font sizes, colors, and other styles that may not be ideal for all users in the default settings of a site.
• Learning
  For developers and enthusiasts, it provides an opportunity to learn and experiment with JavaScript and CSS in real-world scenarios.

Possible disadvantages

• Compatibility Issues
  Custom scripts and styles may not work correctly on all websites or could break website functionality if not implemented carefully.
• Security Risks
  Running custom scripts can pose a security risk if users are not careful about what scripts they install or run, potentially exposing them to malicious code.
• Maintenance
  Scripts and styles need to be maintained and updated, especially as websites change their structure or design, requiring ongoing effort from the user.
• Performance Impact
  Poorly written JavaScript and CSS can slow down the browser or negatively affect the performance of websites.

• Auto-redirect from English to Simple English if such an article exist in Simple English

  // ==UserScript== // @name Wikipedia Redirect // @namespace https://greasespot.net // @version 0.1 // @description Redirect from English Wikipedia to Simple English Wikipedia if the page exists // @author Noname //... Source: over 3 years ago

• I made a simple Chrome Extension which removes Promoted Posts (Ads) on Reddit!

  You can use such scripts on tampermonkey (chrome) or greasemonkey (for firefox) or User Javascript an CSS injector. Source: about 3 years ago

• On Kbin, upvotes & downvotes are public.

  Speaking of Kbin, I made a blue theme (before) that anyone can use. Here is the CSS code. To apply it, use the chrome/brave extension called 'User JavaScript and CSS'. There are other extensions in different browsers that do the same... Source: about 3 years ago

• User JS to help explore the terminal.

  I recommend this to use it: https://chrome.google.com/webstore/detail/user-javascript-and-css/nbhcbdghjpllgmfilhnhkllmkecfmpld. Source: over 3 years ago

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