If this switch is grey and you see “Blocked” next to it, JavaScript is already disabled in Chrome.

You cannot disable JavaScript in the iPhone or iPad version of Chrome.

If the switch is already grey, JavaScript is disabled in your Android’s Chrome browser. When you update Google Chrome, you may have to re-disable JavaScript.

If this box is already unchecked, JavaScript is disabled in Safari.

If the “JavaScript” switch is already white, JavaScript is disabled for Safari. You may have to re-disable JavaScript after you update your iPhone.

If there’s any text in the address bar, delete it before proceeding.

If the “Value” category is already set to “false” instead of “true”, JavaScript is already disabled.

You cannot disable JavaScript in the iPhone or iPad version of Firefox.

If there’s text in the address bar, remove it before proceeding.

If the “javascript. enabled” option has “false” written below it, JavaScript is already disabled in Firefox.

If the “javascript. enabled” option has “false” written below it, JavaScript is already disabled in Firefox.

When you update the Firefox app, you may need to disable JavaScript again.