It's a bit of a crude workaround but that might work. My use-case is that I frequently browse to a site on my mobile and want to view it later on my desktop machine. I could do that with a couple clicks easily before. Now I will have to keep a bunch of tabs open on my mobile and remember to manually go and check for them when I'm back on the desktop.

Just one example, I would browse through my Twitter feed before going to sleep. Any interesting links from Twitter were sent to the desktop machine from the mobile. In the morning, I would start Firefox on the desktop and a bunch of new tabs would automatically pop open, which was great.