BootstrapX Clickover provides a Bootstrap extension to allow popovers to be opened and closed with clicks on elements instead of hover or focus.
Popper.js is a library used to create poppers in web applications. Common examples of poppers are tooltips and popovers.
WebUI Popover is a lightweight jQuery popover plugin that enchance the popover plugin of Bootstrap with some awesome new features. It works well with Bootstrap.
Bigfoot.js is a simple jQuery plugin that detects footnotes on the page and makes them better. It creates clickable buttons out of the original footnote link and creates a popover when the footnote button is clicked. Finally, the script make sure the popover is appropriately sied and positioned so that it looks great on any screen size.