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Rated 5 out of 5 stars
I'm very happy with this extension, as it allows me to view websites in different browsers in relative comfort. That's why it deserves all five stars.
Still, there's one thing I would like to mention: when I recently uninstalled my old Opera 12.x version, the browser kept being listed in browser-view. I would suggest the inclusion of a function, which checks every now and then if the browser executables exist on the hard drive. As far as I could determine, the Opera uninstallation left behind a number of registry traces. That's why I was only able to remove Opera from Browser View by manually going through the registry and deleting all references to the opera.exe file. That's certainly sloppy behavior of the Opera developers or their installer, but it wouldn't hurt to exclude non-existing applications by checking their application path.