Today I'm releasing two fuzzers: jsfunfuzz, which tests JavaScript engines, and DOMFuzz, which tests layout and DOM APIs. Over the last 11 years, these fuzzers have found 6450 Firefox bugs, including 790 bugs that were rated as security-critical. I had to keep these fuzzers private for a long time because of the frequency with which they found security holes in Firefox. But three things have chang

