I used to unplug the yellow airbag harness underneath the passenger seat. However, I haven't done it on the last couple of trips because my trucks is past warranty for airbag parts. The last time I unplugged it, I couldn't get the light to reset, so I had to go into Nissan to have them clear the code.
With all that being said, I'm not 100% convinced unplugging that thing will actually stop the side curtains from deploying. I got into a conversation with someone about redundancy in the system. Modern airbag systems are designed to work through faults that might occur in the system. Personally, and I can't prove this at all, I don't think unplugging that harness actually eliminates the redundancy in the system. Also, knock on wood, I think I've only seen Frontiers have the airbag problem. Additionally, I do believe I saw a TSB somewhere that required reprogramming of the airbag system and I think it was only for Frontiers.
I can't speak to the unplugging thing, but there is some fake news in the second paragraph.
Reprogram was for Xterra's too.
Here's a link to the TNX thread about it.
ETA: (for the lazy clickers) From TNX
Recall Notice: Xterras, Titans, and Frontiers
SUMMARY
The current Air Bag Control Unit (ACU) rollover-sensing calibration logic could allow for unintended curtain air bag deployment in rare instances occurring under certain unique driving scenarios, usually involving unpaved roads or off-road where one side of the vehicle is higher than the other.
REMEDY
Nissan is conducting a Voluntary Service Campaign to reprogram the ACU in 2004-2014 Titan, 2005-2014 Frontier, and 2005-2014 Xterra vehicles. Nissan authorized dealers will reprogram the ACU with updated software. The ACU reprogramming will improve rollover-sensing calibration to address certain unique driving scenarios, and help prevent unintended rollover curtain air bag deployment, while maintaining the design intent for deployment in rollover crashes. This service, which is conducted at no charge to you for parts and labor, should take approximately two (2) hours to complete. However, your Nissan dealer may require your vehicle for a longer period of time based upon their work schedule.
Please contact your Nissan Dealer with any questions or comments about your Nissan.