Websites that use scripts to enhance the user experience occasionally cause error pop-ups to appear. These errors may be the result of a coding error or an incompatibility with the specific computer and browser on the website. Most browsers allow users to disable scripts from running. Scripts can be disabled for some functions while allowing them to perform other functions. Each browser has its own process for disabling scripts.

Setting JavaScript Options in Firefox
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Launch Firefox. Click "Start," then "Firefox."
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Open Firefox preferences. Click "Edit," then "Preferences."
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Change the scripting options. Either remove the check from the box next to "Enable JavaScript," or click "Advanced" and set the checks to the functions that JavaScript will be allowed to perform. Click "OK," then "Close."
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Step
Restart Firefox. Click the "X" in the corner to close Firefox. Click "Start" then "Firefox" to load Firefox with the new JavaScript settings.
Setting Script Options in Internet Explorer 5.0 and Later
Step
Launch Internet Explorer. Click "Start," then "Internet Explorer."
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Open the security options. Click "Tools," then "Internet Options." Then click the "Security" tab.
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Customize active content levels. Under "Web Content Zone," click "Internet." Click "Custom Level." Click "Disable" for all of the options listed in the dialog box. Click "OK," then click "OK" again.
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Restart Internet Explorer. Click the "" in the top right of the screen to close the window. Click "Start," then "Internet Explorer."
Disable JavaScript in Opera
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Launch Opera. Click "Start," then "Opera."
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Open the JavaScript configuration page. Copy and paste "opera:config#Browser%20JavaScript" to the address bar.
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Disable JavaScript. Click the drop box and change the value from "2" to "1."
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Save the setting. Click the "Save" button below the JavaScript setting.
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Reload the page. Press "F5." The page will display "browser.js is disabled."