Greasemonkey

Greasemonkey

Greasemonkey is a Firefox extension that allows users to install user scripts that make on-the-fly changes to web page content before or after the page is loaded in the browser. It allows customization and enhancement of web pages to suit user preferences.
Greasemonkey image
userscripts javascript customization enhancement

Greasemonkey: Customize Firefox Web Pages

A Firefox extension that enables users to install and run user scripts for on-the-fly changes to web page content, allowing customization and enhancement of web pages.

What is Greasemonkey?

Greasemonkey is a popular extension for the Mozilla Firefox web browser that allows users to install user scripts to make customizations to web pages on the fly before or after the page loads in the browser. It provides a way to modify the user interface and behavior of various websites to add extra functionality or fix issues.

Some common uses of Greasemonkey scripts include:

  • Skipping over unnecessary splash screens or advertisements on websites
  • Making visual styling changes to pages to improve readability or aesthetics
  • Altering page layouts and flows to accelerate workflows
  • Adding new user interface elements or widgets
  • Pulling or modifying data from pages not otherwise accessible
  • Automating interactions with page JavaScript

Greasemonkey scripts use JavaScript and the browser DOM to make changes, so they can be very powerful but do require some programming knowledge. The Greasemonkey community has a large selection of free user scripts to add capabilities to popular sites like YouTube, Google, Amazon, and more. The scripts are installed within Greasemonkey's dashboard and can be enabled, disabled, edited, and removed as needed.

By customizing and enhancing websites to best fit their preferences, Greasemonkey provides Firefox users with a way to personalize their browsing experience for improved usability and productivity.

Greasemonkey Features

Features

  1. Allows users to install scripts that make changes to web pages
  2. Scripts can modify page content, add new functionalities, fix issues
  3. Large library of existing scripts created by community
  4. Scripts can be enabled/disabled as needed

Pricing

  • Free
  • Open Source

Pros

Customize web pages to personal preferences

Fix annoyances or issues on websites

Automate repetitive web tasks

Add extra features not provided by websites

Cons

Requires technical knowledge to create scripts

Scripts can slow down page load time

Security risk if running untrusted scripts

Scripts may break if website HTML changes


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