The reason is simple, MozRepl is designed to be an interactive shell interface scoped to a given window and jsbridge is intended to be a window neutral programmatic bridge.

Eventually I found it too difficult to keep around various repl objects when all the jsbridge code runs in the windowless “ether” that resources get evaluated in.

I had planned on having a destabalizing period in the trunk to accommodate this work but with the influx of people we’ve gotten from this post I’ll probably end up getting everything working locally before I check it in.

Thanks for the interest :)