ACE Arvostelua 

This browser exhibits such sleazy behavior. I would never let it stay on my computer. In trying to download a game, a pop-up to download this Ace browser instead took over my screen and there was no way to disable it and close it. I had to go into Task Manager to close it. It then took time to uninstall the Ace browser app and run a full scan to make sure my computer was clean. No legitimate browser, especially one that claims to limit pop-ups, is going to behave this way. Really? You're going to limit the pop-ups but then you're going to use pop-ups to force users to download you? I think not.

Hijacked my computer without permission — stay away
This extension is malicious. After installing it, it hijacked my browser registry and silently installed additional extensions without my knowledge or consent. It completely took over my browser settings and interfered with my work. I spent over 1.5 hours trying to undo the damage it caused. This is not a legitimate browser tool — it's malware in disguise. Do not install this under any circumstances. I've never had an extension do this much damage to my system. Zero stars if I could.