It was amazing add-on but with the new Firefox it all vent down rapidly. Before keefox detected accurately the site you're subscribed. You could see the sign when you visit the site. Now it's blank. It doesn't see shit.
I had a big problem with login to a website I'm subscriber 7 years. The new add-on diverted my login to another site. Every time I tried to login to the site I was diverted to other site. I've sent a complaint email and they told me that they don't see any problems. There was no suspicious entry.
Then I made a test with other browser (Opera) with the old add-on and everything was fine.
To cut it short, problem was in new add-on. Auto log for whatever reason diverted my logon to website I know nothing about.
Now I have to use copy username and copy password to login to that website. otherways I'm srewed.