Solved FEBE 8.5.2 hangs

I'm trying the new FEBE 8.5.2. So far it does the same thing as 8.5.0. The backup progress zips through to 100% and the window hangs. If you click the 'x' to close the window you get the "backup aborted" notification.

I'm running FF 32 bit 36.01

I guess this is a chronic issue due to name collisions with other AddOns. I tried adding those suggested on the FEBE forum to the Ignore List. It still hangs. It's too bad because when it works it's a simple way to backup and load into compatible browsers, all your bookmarks, extensions etc..