Javascript is a scripted programming language that runs on a visitor's web browser (Firefox, Internet Explorer, etc.).

Today, almost every web page on the Internet contains a bit of JavaScript code. It enhances the function of many web pages built for specific purposes and if disabled for some reason, the content or the functionality of a given web page can be limited or unavailable.

Below are instructions on how to re-enable or activate the JavaScript option within the four most popular browsers.

Apple Safari

1. On the web browser menu click on the "Edit" and select "Preferences".
2. In the "Preferences" window select the "Security" tab.
3. In the "Security" tab section "Web content" mark the "Enable JavaScript" checkbox.
4. Click on the "Reload the current page" button of the web browser to refresh the page.

Google Chrome v10+

1. On the web browser menu click on the "Customize and control Google Chrome" and select "Options".
2. In the "Google Chrome Options" tab select the "Under the Hood" menu item.
3. In the "Privacy" section click "Content settings..." button.
4. In the "Content settings" window go to "JavaScript" section and select "Allow all sites to run JavaScript (recommended)".
5. Close the "Google Chrome Options" tab.
6. Click on the "Reload this page" button of the web browser to refresh the page.

Internet Explorer v9

1. On web browser menu click the "Tools" menu and select "Internet Options".
2. In the "Internet Options" window select the "Security" tab.
3. On the "Security" tab click on the "Custom level..." button.
4. When the "Security Settings - Internet Zone" dialog window opens, look for the "Scripting" section.
5. In the "Active Scripting" item select "Enable".
6. When the "Warning!" window pops out asking "Are you sure you want to change the settings for this zone?" select "Yes".
7. In the "Internet Options" window click on the "OK" button to close it.
8. Click on the "Refresh" button of the web browser to refresh the page.

Mozilla Firefox v4+

1. On the web browser click the "Firefox" menu and then select "Options".
2. In the "Options" window select the "Content" tab.
3. Mark the "Enable JavaScript" checkbox.
4. In the opened "Options" window click on the "OK" button to close it.
5. Click on the "Reload current page" button of the web browser to refresh the page.

Older Browsers:

Google Chrome v1-9

1. On the web browser menu click on the "Customize and control Google Chrome" and select "Options".
2. In the "Google Chrome Options" window select the "Under the Hood" tab.
3. In the "Privacy" section click "Content settings..." button.
4. In the "Content settings" window select the "JavaScript" tab.
5. In the "JavaScript" tab select "Allow all sites to run JavaScript (recommended)".
6. Close the "Content Setting" window.
7. Close the "Google Chrome Options" window.
8. Click on the "Reload this page" button of the web browser to refresh the page.

Internet Explorer v1-8

1. On web browser menu click "Tools" and select "Internet Options".
2. In the "Internet Options" window select the "Security" tab.
3. On the "Security" tab click on the "Custom level..." button.
4. When the "Security Settings - Internet Zone" dialog window opens, look for the "Scripting" section.
5. In the "Active Scripting" item select "Enable".
6. When the "Warning!" window pops out asking "Are you sure you want to change the settings for this zone?" select "Yes".
7. In the "Internet Options" window click on the"OK" button to close it.
8. Click on the "Refresh" button of the web browser to refresh the page.

Mozilla Firefox v1-3

1. On the web browser menu click "Tools" and select "Options".
2. In the "Options" window select the "Content" tab.
3. Mark the "Enable JavaScript" checkbox.
4. In the opened "Options" window click on the "OK" button to close it.
5. Click on the "Reload current page" button of the web browser to refresh the page.