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Greasemonkey 3.9

Customise how websites look and behave (Firefox)

by Mike Williams

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License: Freeware
Operating Systems: Linux, Mac OS X, Windows 10, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP

Firefox 20 and later

Languages: English
Software Cost: Free
Date Updated: 21 August 2016
Watchlist: Add download to my watchlist
Downloads To Date: 2685
Developer: Greasemonkey
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Customise how websites look and behave

Greasemonkey is a Firefox add-on which uses small chunks of JavaScript to customise how a web page works.

You don't have to know anything about JavaScript to use Greasemonkey, as there are plenty of free scripts available. And it's surprising just what they can do. As we write, one repository (Greasy Fork) has scripts to avoid ads, extend YouTube, bulk-delete items from your Facebook timeline, download videos, translate text, check Rapidshare links, download Instagram and Facebook albums, and automate, fix and enhance just about every aspect of Kings of Camelot (and that's just on the first three pages).

These scripts can be almost as powerful as add-ons, and they're usually just as easy to install. Find something you like at Greasy Fork, click the link to read more, and if you like the sound of it, click "Install this script". A warning dialog explains what you're about to do, so there's no risk of silent installations. There's an option to view the script source, but otherwise you can install it with a click. Installed scripts can then be accessed via an extra tab on the Addons page, where you'll find buttons to set options, disable or remove them.

Greasemonkey also provides simple tools to create and manage your own scripts (click the Greasemonkey button on the address bar and choose "New User Script"). Even experts may find it a challenge to get everything working, but fortunately Greasemonkey has a comprehensive wiki to offer help and advice.

Version 3.9 changes (News):

Feature enhancements:

Improve the performance of GM_getValue/GM_setValue. (#2197, #2025)
Add a rich tooltip to the Greasemonkey toolbar button.  (#2377, #2418)
GM_getResourceText supports a second (responseType) parameter, for better compatibility with binary files. (#2376)

Fixed bugs:

Global exclude rules no longer require a Firefox restart to take effect. (#2410)
A web page whose url ends in ".user.js" could fail to load. (#2407)
A script whose name ends in ".db" could fail. (#2402)


Greasemonkey extends Firefox by providing easy access to a huge range of scripts. Beginners can use it without worrying about the fine details, but if you're a JavaScript expert then it also gives you plenty of site-customising power.

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Spotlight: Free Full Software

WhatsApp Messenger 2.16.11

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

What's new in 2.16.11?

 - Due to a bug in iOS 10, your notification sounds may not properly play until you restart your iPhone (press and hold the power and home buttons for 10 seconds).
- In groups, you can now mention specific people to get their attention by typing the @ symbol and choosing someone from the picker. 
- When forwarding messages, you can now send to multiple chats at once 
- Ask Siri to send WhatsApp messages or place WhatsApp calls (iOS 10+) 
- Answer WhatsApp calls right from your lock screen, just like a standard phone call (iOS 10+) 
- A new Widget lets you quickly jump to a recent chat or see which chats have unread messages (iOS 10+)