This bug is meant for tracking the implementation of the WebNavigation API on Fennec. MDN documentation: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/webNavigation
Matt, Luca, do you know of anything else that needs to be done with this now that tab support has landed?
It looks like all of the tests are running and passing on try, though test_ext_webnavigation.html is awfully slow, taking over 100 seconds to run. Luca, do you think that's normal? Other than figuring out if that's normal, I'm not sure what else needs to be done.