Makes tabs addressable by ctrl+[1-9] keystrokes Source: https://github.com/farnoy/addressable-tabs
What is addressable-tabs?
Addressable-tabs is a Firefox add-on that allows you to quickly navigate between tabs by assigning them to ctrl+[1-9] keystrokes. Boost your productivity and eliminate the need to manually search for tabs by using this convenient and time-saving tool.
addressable-tabs is safe to use. It does not request any sensitive permissions.
addressable-tabs has earned a fairly good reputation and likely can be trusted.