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User JavaScript community site for Opera

Published May 22nd, 2005 2:38 PM EDT By Daniel Goldman

UserJS.org, a site dedicated to hosting User JavaScript files for use in the Opera web browser, is now up and running.

User JavaScript is available from Opera 8. It allows you to specify local JavaScript files for Opera to include on every page that you visit.

These scripts can do almost anything. Some examples:

  • Fix broken scripts on Web pages.
  • Enhance Web pages by changing or adding your own content to the page.
  • Protect users from malicious web sites.
  • Add or extend browser functionality.
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5 Comments

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  1. 1 Anonymous May 22nd, 2005 at 5:24 pm

    Hooray! This has great potential.

    /minisu

  2. 2 treego14 May 22nd, 2005 at 5:47 pm

    It seems a little advanced as to exactly what these scripts would do. The descriptions could be a little easier to interpret for people like me, I think.

    But, it is a great idea, and I look forward to seeing some scripts that I understand. :)

  3. 3 minghong May 23rd, 2005 at 3:09 am

    Weird… it’s like creating a “JavaScript.org” that hosts only JavaScript that works in Opera.

    UserJS is a generic idea. Both Opera and (extension author of) Firefox started this idea in similar time. It was not copying each other’s idea, it just happens to be at similar time.

  4. 4 Skyzyx May 23rd, 2005 at 12:34 pm

    It sounds alot like Greasemonkey to me. Although I’ve been using favelets/bookmarklets for years to do the same thing, albeit not automatically…

  5. 5 Anonymous Sep 8th, 2005 at 9:07 pm

    This post has been removed by a blog administrator.

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Opera Watch, an Opera browser blog, is run by Daniel Goldman, who used to work for Opera Software as a Technical Evangelist.

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Q: What is Opera?
A: Opera is one of the most powerful Web browsers around. A Web browser is the program that allows you to view Web pages. Opera is well known for innovation for PC browsers and bringing the full web to mobile phones and devices.

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A: It's about getting more out of the time you spend on the internet. Opera is designed to be much faster than these browsers and gives you powerful features that the default browser lacks. Default browsers like Internet Explorer are also more likely to be subjected to dangerous software such as viruses and spyware.

Q: Will Opera keep me safe from fraudulent websites and malicious hackers?
A: According to Secunia, a respected firm that tracks security in browsers, Opera has the best reputation and track record when it comes to browser security. Keeping our users safe from security vulnerabilities, fraudulent websites, and malicious hackers is a top priority for Opera. Opera is maintained by hundreds of engineers, developers and security experts who are constantly looking to make the browser even safer.

Q: Doesn't Opera copy all of their features from other browsers?
A: Absolutely not. In fact, many of the features that are popular in other browsers today were invented and pioneered by Opera a long time ago. Opera invented the precursor to tabs (in 1994), Page Zoom (1994), was the first browser to block pop-up ads (2000), first to add a Search field in the browser toolbar (2000), Sessions (1996), deleting private data (2000), Mouse Gestures (2000), User JavaScript (2005), BitTorrent support (2005), Widgets (2006), Speed Dial (2007), and much more.

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A: Much of the functionality provided through Firefox extensions is already built directly into Opera, so you don't have to download additional extensions in Opera. In addition, Opera is highly customizable and supports all standard plug-ins.

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A: Yes. And your Nintendo Wii, Nintendo DS or almost any connected device and mobile phones. Opera Mobile oftens comes preinstalled from the manufacturers, but if it doesn't you can install Opera Mini which runs on nearly all phones.

Q: This all sounds great, so how do I download Opera?
A: -- Opera on your computer
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-- or learn more about Opera at www.opera.com