I'll investigate that, thanks. However, the last time I checked I'd have to set up and run a separate account server service as well and since weave still work

I'll investigate that, thanks. However, the last time I checked I'd have to set up and run a separate account server service as well and since weave still works I had no reason to invest the effort into switching. Regardless, I'll likely be switching to FF 52 ESR so the point will be moot.