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About this Add-on
- Press the F12 key to minimize your browser windows.
- Press both the mouse buttons (left and right) down to minimize your browser windows.
- Open and focus on a new tab with the URL you preset.
- Hide the tab-bar.
- Press Shift-F12 to show the tab bar and close the new tab opened by the boss key or buttons.
- Minimize the browser window.
- Do the hiding for all the open browser windows.