The extension eats a lot of resources and slows down, or interferes with the browsing experience. Such that I had to disable it. Now, this may mean there should be refinements or other adjustments -- this is just my longer term experience, and I had to disable it. The extension does expose an area that I feel Firefox should protect against natively, however.

It's cool but I can't open links from browser to app anymore, nor does it actually add any domains to the whitelist when I try to allow them to bypass.