JavaScript is a browser-based scripting language used by millions of websites. It allows programmers to create Web pages capable of delivering dynamic functionality and in-page refreshing that can be interpreted by any modern browser. Because JavaScript has often been used to deploy pop-ups and other distracting page elements, some users opt to disable the technology. Fortunately, whether you use Internet Explorer, Firefox, Opera or Safari on your Windows 7 computer, you can re-enable JavaScript with only a few clicks.
Internet Explorer
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Step 1
Open an Internet Explorer browser window.
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Step 2
Click the "Tools" button near the top-right corner of the window and select "Internet Options."
Step 3
Select the "Security" tab located at the top of the resulting dialog box and then click the "Custom Level" button.
Step 4
Scroll down through the list of options until you reach the "Scripting" section.
Step 5
Set the "Active scripting" option to "Enable."
Step 6
Click "OK" on each of the next two screens to confirm the change.
Firefox
Step 1
Open a Firefox browser window.
Step 2
Click the "Tools" option in the top menu bar and then select "Options."
Step 3
Select the "Content" tab located at the top of the resulting dialog box.
Step 4
Check the "Enable JavaScript" box.
Step 5
Click "OK" to confirm the change.
Opera
Step 1
Open an Opera browser window.
Step 2
Click the "Menu" button at the top-left corner of the window.
Step 3
Select "Settings," followed by "Quick Preferences."
Step 4
Check the "Enable JavaScript" box that appears in the resulting sub-menu.
Safari
Step 1
Open a Safari browser window.
Step 2
Click the "Edit" item in the top menu bar and then select "Preferences."
Step 3
Select the "Security" tab in the resulting dialog box.
Step 4
Check the "Enable JavaScript" box.
Step 5
Click the "X" in the top-right corner of the dialog box to confirm the change.