This is a useful feature whenever you need to select text at a web page using you keyboard in Firefox browser.
This mode is known as Caret Browsing and you can toggle it by pressing F7.
When this setting is enabled, Firefox will display a movable cursor in web pages, allowing you to select text with the keyboard.
Or you may toggle this mode in the Settings page, Accessibility, Always use the cursor keys to navigate within pages.
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| Caret Browsing |
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