To get their number, they used the "Crash Reports" data as well as the "Aggregate View of FF Crashes" data, which can be viewed at the end of the article.
Says Ken Kovash: "As mentioned previously, improving Firefox stability was a top level objective of the Mozilla community during the last few months of 2009. That effort was led by a variety of folks across a wide breath of the community… people who saw the many complaints about crashes, collected the data, figured out what was causing the most pain, addressed those issues (sometimes in code, sometimes by working with partners) and saw product improvements."
Well done.
Written by: Andre Yoskowitz @ 10 Apr 2010 12:27