Using this plugin you can make short links and screenshots on your own domain.
What is Short.io?
Short.io is a Firefox add-on that enables users to generate short links and capture screenshots on their own domain. With this plugin, you can create concise and easily shareable links, as well as capture screenshots to quickly share webpage content. Enhance your productivity and streamline your online sharing experience with Short.io.
Short.io is relatively safe to use as it requires very minimum permissions.
Short.io is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.