Hello,

The Firefox settings panel does not include an option to disable JavaScript but you can still disable it using the Firefox Configuration Editor (about:config page) or by installing an add-on.

about:config

1. In the address bar, type about:config and press Enter.
2. Click "I accept the risk!"
3. In the search bar, search for "javascript.enabled" (with no quotes).
4. Right click the result named "javascript.enabled" and click "Toggle". JavaScript is now disabled.

To Re-enable JavaScript, repeat those steps.

Add-ons

You can alternatively install an add-on that lets you disable JavaScript, such as

• No-Script (to disable JavaScript on a per page basis, as required)
• QuickJava (to easily disable and enable JavaScript, automatic loading of images, and other content)
• SettingSanity (adds back removed options for JavaScript, Advanced JavaScript Settings, loading images, and showing the Tab Bar)

Thank you and I hope this helps!

Your System Details list shows that you have NoScript 5.0.5 installed, so make sure you allow all necessary scripts on pages that give errors.

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block (wanted) content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then always make sure such extensions do not block (wanted) content.

• make sure that your extensions and filters are updated to the latest version