RootsChat Toolbar

[manukarik]

Just downloaded Firefox so that I can use the RootsChat Toolbar. Unfortunately, the downloaded add-on seems to be corrupt.

This is the message I get:

s3.amazonaws.com

The add-on downloaded from this site could not be installed because it appears to be corrupt.

Is the add-on still working and if so what can I do to get the add-on to install properly?

Any suggestions gratefully received!