The Mozilla FAQ on CEO Resignation says "Brendan was not fired and was not asked by the Board to resign. Brendan voluntarily submitted his resignation. The Board acted in response by inviting him to remain at Mozilla in another C-level position. Brendan declined that offer. The Board respects his decision." [1]
"Another C-level position" definitely means not CEO, and probably means CTO.
So Brendan is not disagreeing with the posting, he's just not stating that he was offered a job as CTO or whatever.
I don't know where cpeterso got the idea they asked him to "stay the course as CEO or CTO", but the FAQ makes it pretty clear he was not asked to stay as CEO, and was probably offered his CTO job back. Are there any other "C-level positions [2]" that he is qualified for? Probably not CDO. ;)
Edit: cpeterso may have been quoting yoric from here: [3] So I don't know where yorik got that idea from. But Brendan corrected his incorrect information, without actually openly revealing what the correct information was.
[1]: https://blog.mozilla.org/blog/2014/04/05/faq-on-ceo-resignat...
[2]: https://en.wikipedia.org/wiki/Corporate_title
[3]: http://dutherenverseauborddelatable.wordpress.com/2014/04/07...
