Opens a quick link preview with Alt+Click and adds a small pop-up window on Alt+Right-Click.
"Open link in new tab" button.
Videos on sites like YouTube are often loaded dynamically so script may not run directly on such pages.
Open links in background tab (Firefox)
+ Enter about:config
+ Search for: browser.tabs.loadDivertedInBackground
+ Double click on 'false' to set 'Value' to 'true'
