In the Firefox Orange menu bar, select Add-ons to open the Add-ons window in a new tab. This page allows you to search for available Add-ons and explore the nature of Add-ons generally.
In the Get Add-ons panel of the Add-ons window, search for an add-on by typing the search term in the search box at the top right an pressing Enter. A list of add-ons matching your search term will display.
Follow the instructions on the page to install any desired add-on. You may be required to review and accept the End User License Agreement. To continue with the installation, click .
To manage or remove your Extensions, click on the Extensions button.
There has been error in communication with Booktype server. Not sure right now where is the problem.
You should refresh this page.