disable javascript in firefox without plugins

This is one for the “it’s easy once you know” category.
In recent versions of Firefox the option to turn off JavaScript had apparently disappeared from the options. Recently I found out where those sneaky Mozilla devs have hidden this handy feature.

In the Firefox menu, go to Tools > Web Developer > Toggle Tools, or use the CTRL-I shortcut key to activate the developer tools side-panel. Once active you see one of those typical cog-wheel icons in the upper right corner showing the settings when you click it.
In those settings, scroll down to the Advanced Settings and flick the “Disable Javascript” check-box. Voila. JS is now disabled for your debugging purposes.

The “Disable Cache” option right above it is also a handy one if you are working on a page. It beats having to hit CTRL-F5 all the time anyway.

The disable JavaScript option in the developer tools settings.

If you want an easier way to control this, store settings per site and things like that, you’re better off installing the NoScript plugin. There’s a reason this option is hidden in the developer tools after all.

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