Tabs API for Fennec

Since Fennec doesnt yet support the tabs API, what can I do to load a content script when a tab is loaded? Do I just keep using the addon SDK until fennec finally gets that feature or is something more WebExtension-y available?

I’ve been monitoring this. It’s just been completed with a target of v54: https://bugzilla.mozilla.org/show_bug.cgi?id=1260548

I’m in the same position - waiting for options-ui: https://bugzilla.mozilla.org/show_bug.cgi?id=1302504
I may have to maintain the SDK version just for Android.