Comment 4 for bug 1251832

I tried this and this seems to have solved the problem partially.

Now, when I went to Youtube and was asked for confirmation to install the webapp. After this was done, I tried opening Youtube from Dash and a new Firefox window was opened pointed to by the Youtube icon on the launcher. But, this window is being pointed to by the Firefox icon also. So, when I use Alt-Tab to switch between windows, I get a Firefox entry and an youtube entry both essentially pointing to the same window. This is very annoying.

Also, I tried visiting other sites like GMail, Google drive etc. but was not asked for Desktop Integration and these are not there in the blacklist also. Not sure what the problem is. I will try to ascertain what the problem is?