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SPECIAL REPORT:
How to Enable JavaScript
May 30, 2007

JavaScript is a programming language built into web browsers. A few people disable it in the belief that this will improve Internet security. Indeed, browser makers may advise people to disable JavaScript when a new security problem is found and the browser maker has not yet fixed the problem, and some people do not re-enable JavaScript when the browser is fixed.

Java & JavaScript

Something which can cause confusion is that there are two languages with similar names, Java and JavaScript. Despite the similarity in their names, they are very different languages. This page pertains to JavaScript, not to Java.

 

Internet Security Products

JavaScript may appear to be disabled, or may not work properly, if Internet Security software is installed, e.g. Norton Internet Security or Firefox’s NoScript Add-on. When such software is installed it may, depending on how it is configured, sabotage perfectly good, perfectly safe websites.

Sites made by Charles A Upsdell are safe.

If you have Internet Security software and encounter a problem with one of my sites which appears to be related to JavaScript, and you know that JavaScript is enabled in your browser, then you should see if you can reconfigure your Internet Security software to prevent the problem. Depending on the security software you have, you may be able to allow JavaScript just for the sites you know are safe.

Problems may occur when the Internet Security’s ad blocker or popup blocker is enabled. Turn off the blocker, and see if this helps. For example, if you have Norton Internet Security, you can go to the Symantec website to learn how to do this.

Problems may also occur because the security level is set too high. Try to lower it, preferably only for the site that does not work properly, so that security remains higher for other sites. For example, if you have Internet Explorer, you can adjust the security level after clicking Tools, Internet Options, Security.

 

Ancient Browsers

JavaScript may not work correctly if you have a very old browser: old browsers are less capable than modern browsers. You should use a modern, up to date browser: newer browsers have more features and are more secure. For more about this, see Why Update?.

 

Some sites need JavaScript to work properly. You may have come here because you have been told that it is disabled. This tells you how to enable it:

Note: it is possible that JavaScript is enabled in your browser, but something else is preventing JavaScript from working as it should. See the sidebars for more about this.

Caution: it is risky to use old browsers with JavaScript enabled. Before enabling JavaScript, make sure you have the latest security updates for your browser.

Firefox Browser Firefox

This gives instructions for enabling JavaScript in Firefox.

Firefox 2.0

Click Tools in the menu bar, click Options, click Content, check the option labelled Enable JavaScript, and click the Okay button. Refresh the page to view it with JavaScript enabled.

Older Versions

It is unsafe to use Firefox older than version 2.0, because older versions have uncorrected security flaws. You should use the latest version that runs on your PC.

Microsoft Internet Explorer Internet Explorer

This gives instructions for enabling JavaScript in Internet Explorer.

Internet Explorer 5.01, 6, and 7

Go to the website, click Tools in the menu bar, click Internet Options, click Security, click Custom Level, check the option labelled Active Scripting Enable (you will have to scroll down a lot to find this option, and note that Internet Explorer refers to JavaScript as “Active Scripting”), and click the Okay button twice. Refresh the page to view it with JavaScript enabled.

Other Versions

It is unsafe to use Internet Explorer 5.5, versions older than 5.01, or any version for Mac PCs, because they have uncorrected security flaws. If you have Windows, you should use the latest version that runs on your PC; if you have a Mac, you should use an alternate browser.

AOL-Netscape Netscape

It is often unsafe to use Netscape, because it frequently has unfixed security flaws, and after Mar 1, 2008 it is no longer supported. You should use another browser.

Opera Opera

This gives instructions for enabling JavaScript in Opera.

Opera 9

Click Tools in the menu bar, click Preferences, click Advanced, click Content, check the option labelled Enable JavaScript, and click the Okay button. Refresh the page to view it with JavaScript enabled.

Older Versions

It is unsafe to use Opera older than version 9, because older versions have uncorrected security flaws. You should use the latest version that runs on your PC.

Safari Safari

This gives instructions for enabling JavaScript in Safari.

All Versions

Click Edit in the menu bar, click Preferences, click Security, check the option labelled Enable JavaScript, and close the window. Reload the page to view it with JavaScript enabled.

You should use the latest version of Safari that runs on your PC.

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