You’ve seen it right: if you are using Internet Explorer, you can “easily” log into OCBC’s online banking.
Internet Explorer? When was the last time you saw someone using that? With about 20% web browser marketshare, hardly anyone uses them anymore.
If you are using FireFox, you would have to downgrade your browser to access the OCBC online banking. The Singapore headquartered bank also has a handy guide if you are wondering how to do that.