Ocean Tabs provides users with relaxing ocean backdrops for a calming experience while browsing the web. However, this extension has been found to be a browser hijacker that will attempt to commandeer your browser search and homepage. This browser hijacker will send you to malicious websites to get money from you or infect your computer further. It may also prevent you from changing your settings back.
Ocean Tabs is usually installed through bundled software without you knowing. Remove it immediately.