Mozilla released its newest version of the Firefox Web browser last Tuesday, October 9th, 2012. Unfortunately, this version had a major security issue, which prompted Mozilla to remove the download from its page just a day after initially releasing it. The software was patched and re-released less than 24 hours later as Version 16.0.1. At Chitika Insights, we were interested in seeing what percentage of Firefox users had updated to version 16 before the fix, and how the issue may have affected adoption rates.