This is not ransomware.
At least not in my IT circle of colleagues. Ransomware encrypts your files and holds them for ransom and the only way to get them decrypted is by paying the ransom (or restore from a backup).
I don't consider something that jams up a program or app and is easily defeated to be ransomware.
Well, it's ransomware. It asks you to pay money for getting your browser working again. The fact that it was created by some pathetic little b*******s who don't have much of a clue doesn't mean it's not ransomware.