Screen Shutter wót pmcintosh

An extension to hide the contents of the page you're currently viewing.

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8 wužywarjow

Firefox ześěgnuś a rozšyrjenje wobstaraś

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This extension provides a toolbar button, and a keyboard shortcut (default: Ctrl + Shift + Up), to create a black overlay that fills the full height and width of the screen to obscure the page contents.

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