To re-enable JavaScript: Toggle the "javascript.enabled" preference to change the value back to "true", which is the default setting.To disable JavaScript: Toggle the "javascript.enabled" preference (right-click and select "Toggle" or double-click the preference) to change the value from "true" to to false.In the search box, search for javascript.enabled.Click "I'll be careful, I promise" if a warning message appears.In the address bar, type about:config and press Enter.If necessary, use about:config to reset the dom.disable_image_src_set preference to the default false value. Note: The Advanced JavaScript Settings window in Firefox does not include a "Change images" option (it was removed in Firefox 1.5). Warning: Do not uncheck this option! Unchecking "Change images" can prevent some images from loading, make some webpage menus harder to navigate and disable features such as zooming in and out of maps. Hide the status bar: Allows scripts to hide the status bar, as in popup windows.Ĭhange status bar text: Allows scripts to replace the status bar web address (URL) with scrolling text.Ĭhange images: (Mozilla Suite/SeaMonkey): Allows scripts to change or animate images, as in image rollovers.
How to enable javascript in firefox windows#
Raise or lower windows: Allows scripts to place windows underneath or on top of other windows.ĭisable or replace context menus: Allows scripts to disable or change context (right-click) menus. Move or resize existing windows: Allows scripts to change the size or position of the existing window. You can allow scripts on web pages to take certain actions by checking the appropriate boxes, or you can prevent the actions by unchecking these settings: In Firefox 23 and above, see below for the corresponding JavaScript preference settings. These advanced settings are accessible when you enable JavaScript (see above) and, in Firefox versions previous to Firefox 23, when you click the "Advanced" button.