Need help with taking off Otterbox Defender for HTC One GPE!!!

[TheZmanRockz]

Hey guys I just got my HTC One From AT&T and I am loving it so far! I got this Otterbox Defender case because I didn't want to break it. It fit on perfectly but now I have no clue on how to take it off. I heard you pull up some tabs and I've broke 2 fingernails trying to pull tabs. Any help on how to take it off? The dust and grime under the screen protector in annoying.